Home / 2,278.23-3,123.45-2,236.71

Finding the Fourth Proportional to 2,278.23, 3,123.45 and 2,236.71

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Solution

The fourth proportional to 2,278.23, 3,123.45 and 2,236.71 is: 3,066.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.23 : 3,123.45 = 2,236.71 : x
  2. Step 2: Convert to fraction form
    2,278.23/3,123.45 = 2,236.71/x
  3. Step 3: Cross multiply
    2,278.23x = 3,123.45 × 2,236.71
  4. Step 4: Simplify right side
    2,278.23x = 6,986,266.44
  5. Step 5: Solve for x
    x = 6,986,266.44/2,278.23
  6. Step 6: Final answer
    x = 3,066.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.