Home / 5,550.74-8,326.11-2,780.81

Finding the Fourth Proportional to 5,550.74, 8,326.11 and 2,780.81

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Solution

The fourth proportional to 5,550.74, 8,326.11 and 2,780.81 is: 4,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.74 : 8,326.11 = 2,780.81 : x
  2. Step 2: Convert to fraction form
    5,550.74/8,326.11 = 2,780.81/x
  3. Step 3: Cross multiply
    5,550.74x = 8,326.11 × 2,780.81
  4. Step 4: Simplify right side
    5,550.74x = 23,153,329.95
  5. Step 5: Solve for x
    x = 23,153,329.95/5,550.74
  6. Step 6: Final answer
    x = 4,171.22

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1.5x scale

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.