Home / 3,256.31-4,885.38-1,309.88

Finding the Fourth Proportional to 3,256.31, 4,885.38 and 1,309.88

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Solution

The fourth proportional to 3,256.31, 4,885.38 and 1,309.88 is: 1,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256.31 : 4,885.38 = 1,309.88 : x
  2. Step 2: Convert to fraction form
    3,256.31/4,885.38 = 1,309.88/x
  3. Step 3: Cross multiply
    3,256.31x = 4,885.38 × 1,309.88
  4. Step 4: Simplify right side
    3,256.31x = 6,399,261.55
  5. Step 5: Solve for x
    x = 6,399,261.55/3,256.31
  6. Step 6: Final answer
    x = 1,965.19

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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.