Home / 7,275.28-10,913.62-2,891.76

Finding the Fourth Proportional to 7,275.28, 10,913.62 and 2,891.76

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Solution

The fourth proportional to 7,275.28, 10,913.62 and 2,891.76 is: 4,337.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.28 : 10,913.62 = 2,891.76 : x
  2. Step 2: Convert to fraction form
    7,275.28/10,913.62 = 2,891.76/x
  3. Step 3: Cross multiply
    7,275.28x = 10,913.62 × 2,891.76
  4. Step 4: Simplify right side
    7,275.28x = 31,559,569.77
  5. Step 5: Solve for x
    x = 31,559,569.77/7,275.28
  6. Step 6: Final answer
    x = 4,337.92

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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.