Home / 6,405.06-8,839.17-3,572.28

Finding the Fourth Proportional to 6,405.06, 8,839.17 and 3,572.28

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Solution

The fourth proportional to 6,405.06, 8,839.17 and 3,572.28 is: 4,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.06 : 8,839.17 = 3,572.28 : x
  2. Step 2: Convert to fraction form
    6,405.06/8,839.17 = 3,572.28/x
  3. Step 3: Cross multiply
    6,405.06x = 8,839.17 × 3,572.28
  4. Step 4: Simplify right side
    6,405.06x = 31,575,990.21
  5. Step 5: Solve for x
    x = 31,575,990.21/6,405.06
  6. Step 6: Final answer
    x = 4,929.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.