Home / 2,257.09-3,114.80-1,262.46

Finding the Fourth Proportional to 2,257.09, 3,114.80 and 1,262.46

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Solution

The fourth proportional to 2,257.09, 3,114.80 and 1,262.46 is: 1,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.09 : 3,114.80 = 1,262.46 : x
  2. Step 2: Convert to fraction form
    2,257.09/3,114.80 = 1,262.46/x
  3. Step 3: Cross multiply
    2,257.09x = 3,114.80 × 1,262.46
  4. Step 4: Simplify right side
    2,257.09x = 3,932,318.85
  5. Step 5: Solve for x
    x = 3,932,318.85/2,257.09
  6. Step 6: Final answer
    x = 1,742.21

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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.