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Finding the Fourth Proportional to 2,387.41, 3,294.64 and 1,339.47

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Solution

The fourth proportional to 2,387.41, 3,294.64 and 1,339.47 is: 1,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.41 : 3,294.64 = 1,339.47 : x
  2. Step 2: Convert to fraction form
    2,387.41/3,294.64 = 1,339.47/x
  3. Step 3: Cross multiply
    2,387.41x = 3,294.64 × 1,339.47
  4. Step 4: Simplify right side
    2,387.41x = 4,413,071.44
  5. Step 5: Solve for x
    x = 4,413,071.44/2,387.41
  6. Step 6: Final answer
    x = 1,848.48

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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.