Home / 3,277.40-4,909.71-2,620.65

Finding the Fourth Proportional to 3,277.40, 4,909.71 and 2,620.65

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Solution

The fourth proportional to 3,277.40, 4,909.71 and 2,620.65 is: 3,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,277.40 : 4,909.71 = 2,620.65 : x
  2. Step 2: Convert to fraction form
    3,277.40/4,909.71 = 2,620.65/x
  3. Step 3: Cross multiply
    3,277.40x = 4,909.71 × 2,620.65
  4. Step 4: Simplify right side
    3,277.40x = 12,866,659.75
  5. Step 5: Solve for x
    x = 12,866,659.75/3,277.40
  6. Step 6: Final answer
    x = 3,925.88

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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.