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Finding the Fourth Proportional to 5,285.55, 7,927.35 and 1,997.55

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Solution

The fourth proportional to 5,285.55, 7,927.35 and 1,997.55 is: 2,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.55 : 7,927.35 = 1,997.55 : x
  2. Step 2: Convert to fraction form
    5,285.55/7,927.35 = 1,997.55/x
  3. Step 3: Cross multiply
    5,285.55x = 7,927.35 × 1,997.55
  4. Step 4: Simplify right side
    5,285.55x = 15,835,277.99
  5. Step 5: Solve for x
    x = 15,835,277.99/5,285.55
  6. Step 6: Final answer
    x = 2,995.96

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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.