Home / 5,629.13-8,442.05-2,116.61

Finding the Fourth Proportional to 5,629.13, 8,442.05 and 2,116.61

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Solution

The fourth proportional to 5,629.13, 8,442.05 and 2,116.61 is: 3,174.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.13 : 8,442.05 = 2,116.61 : x
  2. Step 2: Convert to fraction form
    5,629.13/8,442.05 = 2,116.61/x
  3. Step 3: Cross multiply
    5,629.13x = 8,442.05 × 2,116.61
  4. Step 4: Simplify right side
    5,629.13x = 17,868,488.52
  5. Step 5: Solve for x
    x = 17,868,488.52/5,629.13
  6. Step 6: Final answer
    x = 3,174.29

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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.