Home / 2,257.55-3,115.49-1,262.94

Finding the Fourth Proportional to 2,257.55, 3,115.49 and 1,262.94

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Solution

The fourth proportional to 2,257.55, 3,115.49 and 1,262.94 is: 1,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.55 : 3,115.49 = 1,262.94 : x
  2. Step 2: Convert to fraction form
    2,257.55/3,115.49 = 1,262.94/x
  3. Step 3: Cross multiply
    2,257.55x = 3,115.49 × 1,262.94
  4. Step 4: Simplify right side
    2,257.55x = 3,934,670.63
  5. Step 5: Solve for x
    x = 3,934,670.63/2,257.55
  6. Step 6: Final answer
    x = 1,742.90

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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.