Home / 7,148.17-10,721.33-2,217.70

Finding the Fourth Proportional to 7,148.17, 10,721.33 and 2,217.70

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Solution

The fourth proportional to 7,148.17, 10,721.33 and 2,217.70 is: 3,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.17 : 10,721.33 = 2,217.70 : x
  2. Step 2: Convert to fraction form
    7,148.17/10,721.33 = 2,217.70/x
  3. Step 3: Cross multiply
    7,148.17x = 10,721.33 × 2,217.70
  4. Step 4: Simplify right side
    7,148.17x = 23,776,628.85
  5. Step 5: Solve for x
    x = 23,776,628.85/7,148.17
  6. Step 6: Final answer
    x = 3,326.26

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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.