Home / 1,470.35-2,202.27-981.11

Finding the Fourth Proportional to 1,470.35, 2,202.27 and 981.11

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Solution

The fourth proportional to 1,470.35, 2,202.27 and 981.11 is: 1,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470.35 : 2,202.27 = 981.11 : x
  2. Step 2: Convert to fraction form
    1,470.35/2,202.27 = 981.11/x
  3. Step 3: Cross multiply
    1,470.35x = 2,202.27 × 981.11
  4. Step 4: Simplify right side
    1,470.35x = 2,160,658.11
  5. Step 5: Solve for x
    x = 2,160,658.11/1,470.35
  6. Step 6: Final answer
    x = 1,469.49

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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.