Home / 5,640.20-8,447.96-2,862.08

Finding the Fourth Proportional to 5,640.20, 8,447.96 and 2,862.08

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Solution

The fourth proportional to 5,640.20, 8,447.96 and 2,862.08 is: 4,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.20 : 8,447.96 = 2,862.08 : x
  2. Step 2: Convert to fraction form
    5,640.20/8,447.96 = 2,862.08/x
  3. Step 3: Cross multiply
    5,640.20x = 8,447.96 × 2,862.08
  4. Step 4: Simplify right side
    5,640.20x = 24,178,737.36
  5. Step 5: Solve for x
    x = 24,178,737.36/5,640.20
  6. Step 6: Final answer
    x = 4,286.86

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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.