Home / 3,447.42-5,171.61-1,257.18

Finding the Fourth Proportional to 3,447.42, 5,171.61 and 1,257.18

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Solution

The fourth proportional to 3,447.42, 5,171.61 and 1,257.18 is: 1,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.42 : 5,171.61 = 1,257.18 : x
  2. Step 2: Convert to fraction form
    3,447.42/5,171.61 = 1,257.18/x
  3. Step 3: Cross multiply
    3,447.42x = 5,171.61 × 1,257.18
  4. Step 4: Simplify right side
    3,447.42x = 6,501,644.66
  5. Step 5: Solve for x
    x = 6,501,644.66/3,447.42
  6. Step 6: Final answer
    x = 1,885.95

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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.