Home / 4,781.24-7,139.14-4,284.44

Finding the Fourth Proportional to 4,781.24, 7,139.14 and 4,284.44

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Solution

The fourth proportional to 4,781.24, 7,139.14 and 4,284.44 is: 6,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.24 : 7,139.14 = 4,284.44 : x
  2. Step 2: Convert to fraction form
    4,781.24/7,139.14 = 4,284.44/x
  3. Step 3: Cross multiply
    4,781.24x = 7,139.14 × 4,284.44
  4. Step 4: Simplify right side
    4,781.24x = 30,587,216.98
  5. Step 5: Solve for x
    x = 30,587,216.98/4,781.24
  6. Step 6: Final answer
    x = 6,397.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.