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Finding the Fourth Proportional to 2,134.40, 3,202.02 and 901.80

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Solution

The fourth proportional to 2,134.40, 3,202.02 and 901.80 is: 1,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.40 : 3,202.02 = 901.80 : x
  2. Step 2: Convert to fraction form
    2,134.40/3,202.02 = 901.80/x
  3. Step 3: Cross multiply
    2,134.40x = 3,202.02 × 901.80
  4. Step 4: Simplify right side
    2,134.40x = 2,887,581.64
  5. Step 5: Solve for x
    x = 2,887,581.64/2,134.40
  6. Step 6: Final answer
    x = 1,352.88

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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.