Home / 5,261.89-7,886.02-2,138.25

Finding the Fourth Proportional to 5,261.89, 7,886.02 and 2,138.25

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Solution

The fourth proportional to 5,261.89, 7,886.02 and 2,138.25 is: 3,204.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.89 : 7,886.02 = 2,138.25 : x
  2. Step 2: Convert to fraction form
    5,261.89/7,886.02 = 2,138.25/x
  3. Step 3: Cross multiply
    5,261.89x = 7,886.02 × 2,138.25
  4. Step 4: Simplify right side
    5,261.89x = 16,862,282.27
  5. Step 5: Solve for x
    x = 16,862,282.27/5,261.89
  6. Step 6: Final answer
    x = 3,204.61

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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.