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Finding the Fourth Proportional to 1,599.26, 2,397 and 611.42

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Solution

The fourth proportional to 1,599.26, 2,397 and 611.42 is: 916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.26 : 2,397 = 611.42 : x
  2. Step 2: Convert to fraction form
    1,599.26/2,397 = 611.42/x
  3. Step 3: Cross multiply
    1,599.26x = 2,397 × 611.42
  4. Step 4: Simplify right side
    1,599.26x = 1,465,567.75
  5. Step 5: Solve for x
    x = 1,465,567.75/1,599.26
  6. Step 6: Final answer
    x = 916.41

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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.