Home / 1,423.44-2,123.78-1,267.52

Finding the Fourth Proportional to 1,423.44, 2,123.78 and 1,267.52

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Solution

The fourth proportional to 1,423.44, 2,123.78 and 1,267.52 is: 1,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.44 : 2,123.78 = 1,267.52 : x
  2. Step 2: Convert to fraction form
    1,423.44/2,123.78 = 1,267.52/x
  3. Step 3: Cross multiply
    1,423.44x = 2,123.78 × 1,267.52
  4. Step 4: Simplify right side
    1,423.44x = 2,691,933.63
  5. Step 5: Solve for x
    x = 2,691,933.63/1,423.44
  6. Step 6: Final answer
    x = 1,891.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.