Home / 5,612.38-8,419.78-2,149.63

Finding the Fourth Proportional to 5,612.38, 8,419.78 and 2,149.63

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Solution

The fourth proportional to 5,612.38, 8,419.78 and 2,149.63 is: 3,224.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.38 : 8,419.78 = 2,149.63 : x
  2. Step 2: Convert to fraction form
    5,612.38/8,419.78 = 2,149.63/x
  3. Step 3: Cross multiply
    5,612.38x = 8,419.78 × 2,149.63
  4. Step 4: Simplify right side
    5,612.38x = 18,099,411.68
  5. Step 5: Solve for x
    x = 18,099,411.68/5,612.38
  6. Step 6: Final answer
    x = 3,224.91

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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.