Home / 3,439.85-5,161.82-1,248.74

Finding the Fourth Proportional to 3,439.85, 5,161.82 and 1,248.74

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Solution

The fourth proportional to 3,439.85, 5,161.82 and 1,248.74 is: 1,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.85 : 5,161.82 = 1,248.74 : x
  2. Step 2: Convert to fraction form
    3,439.85/5,161.82 = 1,248.74/x
  3. Step 3: Cross multiply
    3,439.85x = 5,161.82 × 1,248.74
  4. Step 4: Simplify right side
    3,439.85x = 6,445,758.41
  5. Step 5: Solve for x
    x = 6,445,758.41/3,439.85
  6. Step 6: Final answer
    x = 1,873.85

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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.