Home / 4,261.28-6,390.33-1,487.18

Finding the Fourth Proportional to 4,261.28, 6,390.33 and 1,487.18

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Solution

The fourth proportional to 4,261.28, 6,390.33 and 1,487.18 is: 2,230.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.28 : 6,390.33 = 1,487.18 : x
  2. Step 2: Convert to fraction form
    4,261.28/6,390.33 = 1,487.18/x
  3. Step 3: Cross multiply
    4,261.28x = 6,390.33 × 1,487.18
  4. Step 4: Simplify right side
    4,261.28x = 9,503,570.97
  5. Step 5: Solve for x
    x = 9,503,570.97/4,261.28
  6. Step 6: Final answer
    x = 2,230.22

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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.