Home / 3,609.32-4,980.72-2,265.65

Finding the Fourth Proportional to 3,609.32, 4,980.72 and 2,265.65

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Solution

The fourth proportional to 3,609.32, 4,980.72 and 2,265.65 is: 3,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.32 : 4,980.72 = 2,265.65 : x
  2. Step 2: Convert to fraction form
    3,609.32/4,980.72 = 2,265.65/x
  3. Step 3: Cross multiply
    3,609.32x = 4,980.72 × 2,265.65
  4. Step 4: Simplify right side
    3,609.32x = 11,284,556.94
  5. Step 5: Solve for x
    x = 11,284,556.94/3,609.32
  6. Step 6: Final answer
    x = 3,126.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.