Home / 2,609.13-3,929.32-2,375.85

Finding the Fourth Proportional to 2,609.13, 3,929.32 and 2,375.85

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Solution

The fourth proportional to 2,609.13, 3,929.32 and 2,375.85 is: 3,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.13 : 3,929.32 = 2,375.85 : x
  2. Step 2: Convert to fraction form
    2,609.13/3,929.32 = 2,375.85/x
  3. Step 3: Cross multiply
    2,609.13x = 3,929.32 × 2,375.85
  4. Step 4: Simplify right side
    2,609.13x = 9,335,443.40
  5. Step 5: Solve for x
    x = 9,335,443.40/2,609.13
  6. Step 6: Final answer
    x = 3,578.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.