Home / 2,214.17-3,319.20-980.92

Finding the Fourth Proportional to 2,214.17, 3,319.20 and 980.92

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Solution

The fourth proportional to 2,214.17, 3,319.20 and 980.92 is: 1,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.17 : 3,319.20 = 980.92 : x
  2. Step 2: Convert to fraction form
    2,214.17/3,319.20 = 980.92/x
  3. Step 3: Cross multiply
    2,214.17x = 3,319.20 × 980.92
  4. Step 4: Simplify right side
    2,214.17x = 3,255,869.66
  5. Step 5: Solve for x
    x = 3,255,869.66/2,214.17
  6. Step 6: Final answer
    x = 1,470.47

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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.