Home / 3,439.55-5,159.78-1,249.31

Finding the Fourth Proportional to 3,439.55, 5,159.78 and 1,249.31

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Solution

The fourth proportional to 3,439.55, 5,159.78 and 1,249.31 is: 1,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.55 : 5,159.78 = 1,249.31 : x
  2. Step 2: Convert to fraction form
    3,439.55/5,159.78 = 1,249.31/x
  3. Step 3: Cross multiply
    3,439.55x = 5,159.78 × 1,249.31
  4. Step 4: Simplify right side
    3,439.55x = 6,446,132.71
  5. Step 5: Solve for x
    x = 6,446,132.71/3,439.55
  6. Step 6: Final answer
    x = 1,874.12

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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.