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Finding the Fourth Proportional to 3,239.61, 4,860.42 and 1,366.47

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Solution

The fourth proportional to 3,239.61, 4,860.42 and 1,366.47 is: 2,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.61 : 4,860.42 = 1,366.47 : x
  2. Step 2: Convert to fraction form
    3,239.61/4,860.42 = 1,366.47/x
  3. Step 3: Cross multiply
    3,239.61x = 4,860.42 × 1,366.47
  4. Step 4: Simplify right side
    3,239.61x = 6,641,618.12
  5. Step 5: Solve for x
    x = 6,641,618.12/3,239.61
  6. Step 6: Final answer
    x = 2,050.13

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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.