Home / 6,405.10-8,839.91-3,753.56

Finding the Fourth Proportional to 6,405.10, 8,839.91 and 3,753.56

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Solution

The fourth proportional to 6,405.10, 8,839.91 and 3,753.56 is: 5,180.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.10 : 8,839.91 = 3,753.56 : x
  2. Step 2: Convert to fraction form
    6,405.10/8,839.91 = 3,753.56/x
  3. Step 3: Cross multiply
    6,405.10x = 8,839.91 × 3,753.56
  4. Step 4: Simplify right side
    6,405.10x = 33,181,164.06
  5. Step 5: Solve for x
    x = 33,181,164.06/6,405.10
  6. Step 6: Final answer
    x = 5,180.43

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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.