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Finding the Fourth Proportional to 3,839.52, 5,758.84 and 1,206.92

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Solution

The fourth proportional to 3,839.52, 5,758.84 and 1,206.92 is: 1,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.52 : 5,758.84 = 1,206.92 : x
  2. Step 2: Convert to fraction form
    3,839.52/5,758.84 = 1,206.92/x
  3. Step 3: Cross multiply
    3,839.52x = 5,758.84 × 1,206.92
  4. Step 4: Simplify right side
    3,839.52x = 6,950,459.17
  5. Step 5: Solve for x
    x = 6,950,459.17/3,839.52
  6. Step 6: Final answer
    x = 1,810.24

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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.