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Finding the Fourth Proportional to 2,115.73, 3,173.50 and 555.72

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Solution

The fourth proportional to 2,115.73, 3,173.50 and 555.72 is: 833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.73 : 3,173.50 = 555.72 : x
  2. Step 2: Convert to fraction form
    2,115.73/3,173.50 = 555.72/x
  3. Step 3: Cross multiply
    2,115.73x = 3,173.50 × 555.72
  4. Step 4: Simplify right side
    2,115.73x = 1,763,577.42
  5. Step 5: Solve for x
    x = 1,763,577.42/2,115.73
  6. Step 6: Final answer
    x = 833.56

Related Problems

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Half scale
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Double scale
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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.