Home / 2,217.47-3,308.88-2,020.97

Finding the Fourth Proportional to 2,217.47, 3,308.88 and 2,020.97

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Solution

The fourth proportional to 2,217.47, 3,308.88 and 2,020.97 is: 3,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.47 : 3,308.88 = 2,020.97 : x
  2. Step 2: Convert to fraction form
    2,217.47/3,308.88 = 2,020.97/x
  3. Step 3: Cross multiply
    2,217.47x = 3,308.88 × 2,020.97
  4. Step 4: Simplify right side
    2,217.47x = 6,687,130.67
  5. Step 5: Solve for x
    x = 6,687,130.67/2,217.47
  6. Step 6: Final answer
    x = 3,015.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.