Home / 4,265.28-6,397.92-1,187.28

Finding the Fourth Proportional to 4,265.28, 6,397.92 and 1,187.28

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Solution

The fourth proportional to 4,265.28, 6,397.92 and 1,187.28 is: 1,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,265.28 : 6,397.92 = 1,187.28 : x
  2. Step 2: Convert to fraction form
    4,265.28/6,397.92 = 1,187.28/x
  3. Step 3: Cross multiply
    4,265.28x = 6,397.92 × 1,187.28
  4. Step 4: Simplify right side
    4,265.28x = 7,596,122.46
  5. Step 5: Solve for x
    x = 7,596,122.46/4,265.28
  6. Step 6: Final answer
    x = 1,780.92

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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.