Home / 6,839.16-9,439.40-3,855.04

Finding the Fourth Proportional to 6,839.16, 9,439.40 and 3,855.04

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Solution

The fourth proportional to 6,839.16, 9,439.40 and 3,855.04 is: 5,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.16 : 9,439.40 = 3,855.04 : x
  2. Step 2: Convert to fraction form
    6,839.16/9,439.40 = 3,855.04/x
  3. Step 3: Cross multiply
    6,839.16x = 9,439.40 × 3,855.04
  4. Step 4: Simplify right side
    6,839.16x = 36,389,250.62
  5. Step 5: Solve for x
    x = 36,389,250.62/6,839.16
  6. Step 6: Final answer
    x = 5,320.72

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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.