Home / 2,561.42-3,843.52-2,515.66

Finding the Fourth Proportional to 2,561.42, 3,843.52 and 2,515.66

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Solution

The fourth proportional to 2,561.42, 3,843.52 and 2,515.66 is: 3,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.42 : 3,843.52 = 2,515.66 : x
  2. Step 2: Convert to fraction form
    2,561.42/3,843.52 = 2,515.66/x
  3. Step 3: Cross multiply
    2,561.42x = 3,843.52 × 2,515.66
  4. Step 4: Simplify right side
    2,561.42x = 9,668,973.63
  5. Step 5: Solve for x
    x = 9,668,973.63/2,561.42
  6. Step 6: Final answer
    x = 3,774.85

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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.