Home / 2,135.52-3,204.60-981.24

Finding the Fourth Proportional to 2,135.52, 3,204.60 and 981.24

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Solution

The fourth proportional to 2,135.52, 3,204.60 and 981.24 is: 1,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.52 : 3,204.60 = 981.24 : x
  2. Step 2: Convert to fraction form
    2,135.52/3,204.60 = 981.24/x
  3. Step 3: Cross multiply
    2,135.52x = 3,204.60 × 981.24
  4. Step 4: Simplify right side
    2,135.52x = 3,144,481.70
  5. Step 5: Solve for x
    x = 3,144,481.70/2,135.52
  6. Step 6: Final answer
    x = 1,472.47

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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.