Home / 3,971.30-5,956.53-1,631.55

Finding the Fourth Proportional to 3,971.30, 5,956.53 and 1,631.55

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Solution

The fourth proportional to 3,971.30, 5,956.53 and 1,631.55 is: 2,447.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.30 : 5,956.53 = 1,631.55 : x
  2. Step 2: Convert to fraction form
    3,971.30/5,956.53 = 1,631.55/x
  3. Step 3: Cross multiply
    3,971.30x = 5,956.53 × 1,631.55
  4. Step 4: Simplify right side
    3,971.30x = 9,718,376.52
  5. Step 5: Solve for x
    x = 9,718,376.52/3,971.30
  6. Step 6: Final answer
    x = 2,447.15

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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.