Home / 4,170.30-6,255.24-1,398.88

Finding the Fourth Proportional to 4,170.30, 6,255.24 and 1,398.88

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Solution

The fourth proportional to 4,170.30, 6,255.24 and 1,398.88 is: 2,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.30 : 6,255.24 = 1,398.88 : x
  2. Step 2: Convert to fraction form
    4,170.30/6,255.24 = 1,398.88/x
  3. Step 3: Cross multiply
    4,170.30x = 6,255.24 × 1,398.88
  4. Step 4: Simplify right side
    4,170.30x = 8,750,330.13
  5. Step 5: Solve for x
    x = 8,750,330.13/4,170.30
  6. Step 6: Final answer
    x = 2,098.25

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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.