Home / 7,148.02-10,721.12-2,217.70

Finding the Fourth Proportional to 7,148.02, 10,721.12 and 2,217.70

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Solution

The fourth proportional to 7,148.02, 10,721.12 and 2,217.70 is: 3,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148.02 : 10,721.12 = 2,217.70 : x
  2. Step 2: Convert to fraction form
    7,148.02/10,721.12 = 2,217.70/x
  3. Step 3: Cross multiply
    7,148.02x = 10,721.12 × 2,217.70
  4. Step 4: Simplify right side
    7,148.02x = 23,776,227.82
  5. Step 5: Solve for x
    x = 23,776,227.82/7,148.02
  6. Step 6: Final answer
    x = 3,326.27

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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.