Home / 4,097.20-5,651.76-2,915.68

Finding the Fourth Proportional to 4,097.20, 5,651.76 and 2,915.68

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Solution

The fourth proportional to 4,097.20, 5,651.76 and 2,915.68 is: 4,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,097.20 : 5,651.76 = 2,915.68 : x
  2. Step 2: Convert to fraction form
    4,097.20/5,651.76 = 2,915.68/x
  3. Step 3: Cross multiply
    4,097.20x = 5,651.76 × 2,915.68
  4. Step 4: Simplify right side
    4,097.20x = 16,478,723.60
  5. Step 5: Solve for x
    x = 16,478,723.60/4,097.20
  6. Step 6: Final answer
    x = 4,021.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.