Home / 5,412.88-8,118.60-1,517.59

Finding the Fourth Proportional to 5,412.88, 8,118.60 and 1,517.59

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Solution

The fourth proportional to 5,412.88, 8,118.60 and 1,517.59 is: 2,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.88 : 8,118.60 = 1,517.59 : x
  2. Step 2: Convert to fraction form
    5,412.88/8,118.60 = 1,517.59/x
  3. Step 3: Cross multiply
    5,412.88x = 8,118.60 × 1,517.59
  4. Step 4: Simplify right side
    5,412.88x = 12,320,706.17
  5. Step 5: Solve for x
    x = 12,320,706.17/5,412.88
  6. Step 6: Final answer
    x = 2,276.18

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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.