Home / 5,385.12-8,063.28-3,162.12

Finding the Fourth Proportional to 5,385.12, 8,063.28 and 3,162.12

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Solution

The fourth proportional to 5,385.12, 8,063.28 and 3,162.12 is: 4,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.12 : 8,063.28 = 3,162.12 : x
  2. Step 2: Convert to fraction form
    5,385.12/8,063.28 = 3,162.12/x
  3. Step 3: Cross multiply
    5,385.12x = 8,063.28 × 3,162.12
  4. Step 4: Simplify right side
    5,385.12x = 25,497,058.95
  5. Step 5: Solve for x
    x = 25,497,058.95/5,385.12
  6. Step 6: Final answer
    x = 4,734.72

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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.