Home / 7,472.28-11,206.98-2,278.68

Finding the Fourth Proportional to 7,472.28, 11,206.98 and 2,278.68

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Solution

The fourth proportional to 7,472.28, 11,206.98 and 2,278.68 is: 3,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.28 : 11,206.98 = 2,278.68 : x
  2. Step 2: Convert to fraction form
    7,472.28/11,206.98 = 2,278.68/x
  3. Step 3: Cross multiply
    7,472.28x = 11,206.98 × 2,278.68
  4. Step 4: Simplify right side
    7,472.28x = 25,537,121.19
  5. Step 5: Solve for x
    x = 25,537,121.19/7,472.28
  6. Step 6: Final answer
    x = 3,417.58

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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.