Home / 2,262.55-3,121.44-1,318.18

Finding the Fourth Proportional to 2,262.55, 3,121.44 and 1,318.18

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Solution

The fourth proportional to 2,262.55, 3,121.44 and 1,318.18 is: 1,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.55 : 3,121.44 = 1,318.18 : x
  2. Step 2: Convert to fraction form
    2,262.55/3,121.44 = 1,318.18/x
  3. Step 3: Cross multiply
    2,262.55x = 3,121.44 × 1,318.18
  4. Step 4: Simplify right side
    2,262.55x = 4,114,619.78
  5. Step 5: Solve for x
    x = 4,114,619.78/2,262.55
  6. Step 6: Final answer
    x = 1,818.58

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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.