Home / 2,319.39-3,479.09-2,291.85

Finding the Fourth Proportional to 2,319.39, 3,479.09 and 2,291.85

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Solution

The fourth proportional to 2,319.39, 3,479.09 and 2,291.85 is: 3,437.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.39 : 3,479.09 = 2,291.85 : x
  2. Step 2: Convert to fraction form
    2,319.39/3,479.09 = 2,291.85/x
  3. Step 3: Cross multiply
    2,319.39x = 3,479.09 × 2,291.85
  4. Step 4: Simplify right side
    2,319.39x = 7,973,540.96
  5. Step 5: Solve for x
    x = 7,973,540.96/2,319.39
  6. Step 6: Final answer
    x = 3,437.78

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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.