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Finding the Fourth Proportional to 2,428.92, 3,644.14 and 868.89

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Solution

The fourth proportional to 2,428.92, 3,644.14 and 868.89 is: 1,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.92 : 3,644.14 = 868.89 : x
  2. Step 2: Convert to fraction form
    2,428.92/3,644.14 = 868.89/x
  3. Step 3: Cross multiply
    2,428.92x = 3,644.14 × 868.89
  4. Step 4: Simplify right side
    2,428.92x = 3,166,344.23
  5. Step 5: Solve for x
    x = 3,166,344.23/2,428.92
  6. Step 6: Final answer
    x = 1,303.60

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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.