Home / 5,616.05-8,387.60-5,280.71

Finding the Fourth Proportional to 5,616.05, 8,387.60 and 5,280.71

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Solution

The fourth proportional to 5,616.05, 8,387.60 and 5,280.71 is: 7,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.05 : 8,387.60 = 5,280.71 : x
  2. Step 2: Convert to fraction form
    5,616.05/8,387.60 = 5,280.71/x
  3. Step 3: Cross multiply
    5,616.05x = 8,387.60 × 5,280.71
  4. Step 4: Simplify right side
    5,616.05x = 44,292,469.99
  5. Step 5: Solve for x
    x = 44,292,469.99/5,616.05
  6. Step 6: Final answer
    x = 7,886.77

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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.