Home / 3,737.15-5,155.92-2,478.81

Finding the Fourth Proportional to 3,737.15, 5,155.92 and 2,478.81

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Solution

The fourth proportional to 3,737.15, 5,155.92 and 2,478.81 is: 3,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.15 : 5,155.92 = 2,478.81 : x
  2. Step 2: Convert to fraction form
    3,737.15/5,155.92 = 2,478.81/x
  3. Step 3: Cross multiply
    3,737.15x = 5,155.92 × 2,478.81
  4. Step 4: Simplify right side
    3,737.15x = 12,780,546.06
  5. Step 5: Solve for x
    x = 12,780,546.06/3,737.15
  6. Step 6: Final answer
    x = 3,419.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.