Home / 5,142.40-7,713.60-1,444.75

Finding the Fourth Proportional to 5,142.40, 7,713.60 and 1,444.75

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Solution

The fourth proportional to 5,142.40, 7,713.60 and 1,444.75 is: 2,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.40 : 7,713.60 = 1,444.75 : x
  2. Step 2: Convert to fraction form
    5,142.40/7,713.60 = 1,444.75/x
  3. Step 3: Cross multiply
    5,142.40x = 7,713.60 × 1,444.75
  4. Step 4: Simplify right side
    5,142.40x = 11,144,223.60
  5. Step 5: Solve for x
    x = 11,144,223.60/5,142.40
  6. Step 6: Final answer
    x = 2,167.13

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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.