Home / 4,478.97-6,716.85-1,315.52

Finding the Fourth Proportional to 4,478.97, 6,716.85 and 1,315.52

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Solution

The fourth proportional to 4,478.97, 6,716.85 and 1,315.52 is: 1,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.97 : 6,716.85 = 1,315.52 : x
  2. Step 2: Convert to fraction form
    4,478.97/6,716.85 = 1,315.52/x
  3. Step 3: Cross multiply
    4,478.97x = 6,716.85 × 1,315.52
  4. Step 4: Simplify right side
    4,478.97x = 8,836,116.93
  5. Step 5: Solve for x
    x = 8,836,116.93/4,478.97
  6. Step 6: Final answer
    x = 1,972.80

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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.