Home / 5,521.38-8,280.78-3,541.02

Finding the Fourth Proportional to 5,521.38, 8,280.78 and 3,541.02

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Solution

The fourth proportional to 5,521.38, 8,280.78 and 3,541.02 is: 5,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.38 : 8,280.78 = 3,541.02 : x
  2. Step 2: Convert to fraction form
    5,521.38/8,280.78 = 3,541.02/x
  3. Step 3: Cross multiply
    5,521.38x = 8,280.78 × 3,541.02
  4. Step 4: Simplify right side
    5,521.38x = 29,322,407.60
  5. Step 5: Solve for x
    x = 29,322,407.60/5,521.38
  6. Step 6: Final answer
    x = 5,310.70

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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.