Home / 7,237.28-9,988.25-4,254.12

Finding the Fourth Proportional to 7,237.28, 9,988.25 and 4,254.12

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Solution

The fourth proportional to 7,237.28, 9,988.25 and 4,254.12 is: 5,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.28 : 9,988.25 = 4,254.12 : x
  2. Step 2: Convert to fraction form
    7,237.28/9,988.25 = 4,254.12/x
  3. Step 3: Cross multiply
    7,237.28x = 9,988.25 × 4,254.12
  4. Step 4: Simplify right side
    7,237.28x = 42,491,192.82
  5. Step 5: Solve for x
    x = 42,491,192.82/7,237.28
  6. Step 6: Final answer
    x = 5,871.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.