Home / 5,618.76-8,425.32-2,987.76

Finding the Fourth Proportional to 5,618.76, 8,425.32 and 2,987.76

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Solution

The fourth proportional to 5,618.76, 8,425.32 and 2,987.76 is: 4,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.76 : 8,425.32 = 2,987.76 : x
  2. Step 2: Convert to fraction form
    5,618.76/8,425.32 = 2,987.76/x
  3. Step 3: Cross multiply
    5,618.76x = 8,425.32 × 2,987.76
  4. Step 4: Simplify right side
    5,618.76x = 25,172,834.08
  5. Step 5: Solve for x
    x = 25,172,834.08/5,618.76
  6. Step 6: Final answer
    x = 4,480.14

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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.