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Finding the Fourth Proportional to 5,241.72, 7,862.58 and 1,955.16

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Solution

The fourth proportional to 5,241.72, 7,862.58 and 1,955.16 is: 2,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.72 : 7,862.58 = 1,955.16 : x
  2. Step 2: Convert to fraction form
    5,241.72/7,862.58 = 1,955.16/x
  3. Step 3: Cross multiply
    5,241.72x = 7,862.58 × 1,955.16
  4. Step 4: Simplify right side
    5,241.72x = 15,372,601.91
  5. Step 5: Solve for x
    x = 15,372,601.91/5,241.72
  6. Step 6: Final answer
    x = 2,932.74

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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.