Home / 7,277.91-10,909.02-3,521.76

Finding the Fourth Proportional to 7,277.91, 10,909.02 and 3,521.76

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Solution

The fourth proportional to 7,277.91, 10,909.02 and 3,521.76 is: 5,278.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.91 : 10,909.02 = 3,521.76 : x
  2. Step 2: Convert to fraction form
    7,277.91/10,909.02 = 3,521.76/x
  3. Step 3: Cross multiply
    7,277.91x = 10,909.02 × 3,521.76
  4. Step 4: Simplify right side
    7,277.91x = 38,418,936.42
  5. Step 5: Solve for x
    x = 38,418,936.42/7,277.91
  6. Step 6: Final answer
    x = 5,278.84

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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.