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Finding the Fourth Proportional to 6,315.28, 9,473 and 2,419.92

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Solution

The fourth proportional to 6,315.28, 9,473 and 2,419.92 is: 3,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.28 : 9,473 = 2,419.92 : x
  2. Step 2: Convert to fraction form
    6,315.28/9,473 = 2,419.92/x
  3. Step 3: Cross multiply
    6,315.28x = 9,473 × 2,419.92
  4. Step 4: Simplify right side
    6,315.28x = 22,923,902.16
  5. Step 5: Solve for x
    x = 22,923,902.16/6,315.28
  6. Step 6: Final answer
    x = 3,629.91

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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.