Home / 2,265.78-3,126.57-1,270.88

Finding the Fourth Proportional to 2,265.78, 3,126.57 and 1,270.88

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Solution

The fourth proportional to 2,265.78, 3,126.57 and 1,270.88 is: 1,753.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,265.78 : 3,126.57 = 1,270.88 : x
  2. Step 2: Convert to fraction form
    2,265.78/3,126.57 = 1,270.88/x
  3. Step 3: Cross multiply
    2,265.78x = 3,126.57 × 1,270.88
  4. Step 4: Simplify right side
    2,265.78x = 3,973,479.65
  5. Step 5: Solve for x
    x = 3,973,479.65/2,265.78
  6. Step 6: Final answer
    x = 1,753.69

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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.