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Finding the Fourth Proportional to 1,708.72, 2,358.03 and 962.68

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Solution

The fourth proportional to 1,708.72, 2,358.03 and 962.68 is: 1,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.72 : 2,358.03 = 962.68 : x
  2. Step 2: Convert to fraction form
    1,708.72/2,358.03 = 962.68/x
  3. Step 3: Cross multiply
    1,708.72x = 2,358.03 × 962.68
  4. Step 4: Simplify right side
    1,708.72x = 2,270,025.13
  5. Step 5: Solve for x
    x = 2,270,025.13/1,708.72
  6. Step 6: Final answer
    x = 1,328.49

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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.