Home / 5,640.39-8,462.61-2,520.14

Finding the Fourth Proportional to 5,640.39, 8,462.61 and 2,520.14

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Solution

The fourth proportional to 5,640.39, 8,462.61 and 2,520.14 is: 3,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.39 : 8,462.61 = 2,520.14 : x
  2. Step 2: Convert to fraction form
    5,640.39/8,462.61 = 2,520.14/x
  3. Step 3: Cross multiply
    5,640.39x = 8,462.61 × 2,520.14
  4. Step 4: Simplify right side
    5,640.39x = 21,326,919.65
  5. Step 5: Solve for x
    x = 21,326,919.65/5,640.39
  6. Step 6: Final answer
    x = 3,781.11

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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.