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Finding the Fourth Proportional to 2,332.92, 3,498.50 and 689

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Solution

The fourth proportional to 2,332.92, 3,498.50 and 689 is: 1,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.92 : 3,498.50 = 689 : x
  2. Step 2: Convert to fraction form
    2,332.92/3,498.50 = 689/x
  3. Step 3: Cross multiply
    2,332.92x = 3,498.50 × 689
  4. Step 4: Simplify right side
    2,332.92x = 2,410,466.50
  5. Step 5: Solve for x
    x = 2,410,466.50/2,332.92
  6. Step 6: Final answer
    x = 1,033.24

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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.