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Finding the Fourth Proportional to 4,000.55, 5,992.78 and 1,993.19

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Solution

The fourth proportional to 4,000.55, 5,992.78 and 1,993.19 is: 2,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.55 : 5,992.78 = 1,993.19 : x
  2. Step 2: Convert to fraction form
    4,000.55/5,992.78 = 1,993.19/x
  3. Step 3: Cross multiply
    4,000.55x = 5,992.78 × 1,993.19
  4. Step 4: Simplify right side
    4,000.55x = 11,944,749.17
  5. Step 5: Solve for x
    x = 11,944,749.17/4,000.55
  6. Step 6: Final answer
    x = 2,985.78

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.