Home / 3,968.90-5,955.38-1,630.70

Finding the Fourth Proportional to 3,968.90, 5,955.38 and 1,630.70

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Solution

The fourth proportional to 3,968.90, 5,955.38 and 1,630.70 is: 2,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.90 : 5,955.38 = 1,630.70 : x
  2. Step 2: Convert to fraction form
    3,968.90/5,955.38 = 1,630.70/x
  3. Step 3: Cross multiply
    3,968.90x = 5,955.38 × 1,630.70
  4. Step 4: Simplify right side
    3,968.90x = 9,711,430.01
  5. Step 5: Solve for x
    x = 9,711,430.01/3,968.90
  6. Step 6: Final answer
    x = 2,446.88

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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.