Home / 4,880.28-7,320.24-3,918

Finding the Fourth Proportional to 4,880.28, 7,320.24 and 3,918

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Solution

The fourth proportional to 4,880.28, 7,320.24 and 3,918 is: 5,876.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.28 : 7,320.24 = 3,918 : x
  2. Step 2: Convert to fraction form
    4,880.28/7,320.24 = 3,918/x
  3. Step 3: Cross multiply
    4,880.28x = 7,320.24 × 3,918
  4. Step 4: Simplify right side
    4,880.28x = 28,680,700.32
  5. Step 5: Solve for x
    x = 28,680,700.32/4,880.28
  6. Step 6: Final answer
    x = 5,876.86

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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.