Home / 5,540.80-8,316.06-4,155.70

Finding the Fourth Proportional to 5,540.80, 8,316.06 and 4,155.70

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Solution

The fourth proportional to 5,540.80, 8,316.06 and 4,155.70 is: 6,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.80 : 8,316.06 = 4,155.70 : x
  2. Step 2: Convert to fraction form
    5,540.80/8,316.06 = 4,155.70/x
  3. Step 3: Cross multiply
    5,540.80x = 8,316.06 × 4,155.70
  4. Step 4: Simplify right side
    5,540.80x = 34,559,050.54
  5. Step 5: Solve for x
    x = 34,559,050.54/5,540.80
  6. Step 6: Final answer
    x = 6,237.20

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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.