Home / 7,417.52-11,128.08-2,487.20

Finding the Fourth Proportional to 7,417.52, 11,128.08 and 2,487.20

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Solution

The fourth proportional to 7,417.52, 11,128.08 and 2,487.20 is: 3,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.52 : 11,128.08 = 2,487.20 : x
  2. Step 2: Convert to fraction form
    7,417.52/11,128.08 = 2,487.20/x
  3. Step 3: Cross multiply
    7,417.52x = 11,128.08 × 2,487.20
  4. Step 4: Simplify right side
    7,417.52x = 27,677,760.58
  5. Step 5: Solve for x
    x = 27,677,760.58/7,417.52
  6. Step 6: Final answer
    x = 3,731.40

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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.