Home / 2,737.87-3,778.05-1,618.72

Finding the Fourth Proportional to 2,737.87, 3,778.05 and 1,618.72

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Solution

The fourth proportional to 2,737.87, 3,778.05 and 1,618.72 is: 2,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,737.87 : 3,778.05 = 1,618.72 : x
  2. Step 2: Convert to fraction form
    2,737.87/3,778.05 = 1,618.72/x
  3. Step 3: Cross multiply
    2,737.87x = 3,778.05 × 1,618.72
  4. Step 4: Simplify right side
    2,737.87x = 6,115,605.10
  5. Step 5: Solve for x
    x = 6,115,605.10/2,737.87
  6. Step 6: Final answer
    x = 2,233.71

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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.