Home / 5,540.18-8,315.13-3,077.78

Finding the Fourth Proportional to 5,540.18, 8,315.13 and 3,077.78

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Solution

The fourth proportional to 5,540.18, 8,315.13 and 3,077.78 is: 4,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.18 : 8,315.13 = 3,077.78 : x
  2. Step 2: Convert to fraction form
    5,540.18/8,315.13 = 3,077.78/x
  3. Step 3: Cross multiply
    5,540.18x = 8,315.13 × 3,077.78
  4. Step 4: Simplify right side
    5,540.18x = 25,592,140.81
  5. Step 5: Solve for x
    x = 25,592,140.81/5,540.18
  6. Step 6: Final answer
    x = 4,619.37

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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.