Home / 5,427.10-7,486.41-3,187.90

Finding the Fourth Proportional to 5,427.10, 7,486.41 and 3,187.90

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Solution

The fourth proportional to 5,427.10, 7,486.41 and 3,187.90 is: 4,397.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.10 : 7,486.41 = 3,187.90 : x
  2. Step 2: Convert to fraction form
    5,427.10/7,486.41 = 3,187.90/x
  3. Step 3: Cross multiply
    5,427.10x = 7,486.41 × 3,187.90
  4. Step 4: Simplify right side
    5,427.10x = 23,865,926.44
  5. Step 5: Solve for x
    x = 23,865,926.44/5,427.10
  6. Step 6: Final answer
    x = 4,397.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.