Home / 5,632.38-8,442.72-2,121.70

Finding the Fourth Proportional to 5,632.38, 8,442.72 and 2,121.70

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Solution

The fourth proportional to 5,632.38, 8,442.72 and 2,121.70 is: 3,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,632.38 : 8,442.72 = 2,121.70 : x
  2. Step 2: Convert to fraction form
    5,632.38/8,442.72 = 2,121.70/x
  3. Step 3: Cross multiply
    5,632.38x = 8,442.72 × 2,121.70
  4. Step 4: Simplify right side
    5,632.38x = 17,912,919.02
  5. Step 5: Solve for x
    x = 17,912,919.02/5,632.38
  6. Step 6: Final answer
    x = 3,180.35

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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.