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Finding the Fourth Proportional to 2,329.35, 3,494.20 and 868.50

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Solution

The fourth proportional to 2,329.35, 3,494.20 and 868.50 is: 1,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.35 : 3,494.20 = 868.50 : x
  2. Step 2: Convert to fraction form
    2,329.35/3,494.20 = 868.50/x
  3. Step 3: Cross multiply
    2,329.35x = 3,494.20 × 868.50
  4. Step 4: Simplify right side
    2,329.35x = 3,034,712.70
  5. Step 5: Solve for x
    x = 3,034,712.70/2,329.35
  6. Step 6: Final answer
    x = 1,302.82

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Double scale
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1.5x scale

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.