Home / 3,520.16-5,280.26-887.66

Finding the Fourth Proportional to 3,520.16, 5,280.26 and 887.66

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Solution

The fourth proportional to 3,520.16, 5,280.26 and 887.66 is: 1,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.16 : 5,280.26 = 887.66 : x
  2. Step 2: Convert to fraction form
    3,520.16/5,280.26 = 887.66/x
  3. Step 3: Cross multiply
    3,520.16x = 5,280.26 × 887.66
  4. Step 4: Simplify right side
    3,520.16x = 4,687,044.75
  5. Step 5: Solve for x
    x = 4,687,044.75/3,520.16
  6. Step 6: Final answer
    x = 1,331.49

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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.