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Finding the Fourth Proportional to 2,345.47, 3,517.69 and 701.81

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Solution

The fourth proportional to 2,345.47, 3,517.69 and 701.81 is: 1,052.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.47 : 3,517.69 = 701.81 : x
  2. Step 2: Convert to fraction form
    2,345.47/3,517.69 = 701.81/x
  3. Step 3: Cross multiply
    2,345.47x = 3,517.69 × 701.81
  4. Step 4: Simplify right side
    2,345.47x = 2,468,730.68
  5. Step 5: Solve for x
    x = 2,468,730.68/2,345.47
  6. Step 6: Final answer
    x = 1,052.55

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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.