Home / 5,116.31-7,672.80-1,652.75

Finding the Fourth Proportional to 5,116.31, 7,672.80 and 1,652.75

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Solution

The fourth proportional to 5,116.31, 7,672.80 and 1,652.75 is: 2,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.31 : 7,672.80 = 1,652.75 : x
  2. Step 2: Convert to fraction form
    5,116.31/7,672.80 = 1,652.75/x
  3. Step 3: Cross multiply
    5,116.31x = 7,672.80 × 1,652.75
  4. Step 4: Simplify right side
    5,116.31x = 12,681,220.20
  5. Step 5: Solve for x
    x = 12,681,220.20/5,116.31
  6. Step 6: Final answer
    x = 2,478.59

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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.