Home / 1,253.44-1,727.58-1,043.20

Finding the Fourth Proportional to 1,253.44, 1,727.58 and 1,043.20

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Solution

The fourth proportional to 1,253.44, 1,727.58 and 1,043.20 is: 1,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253.44 : 1,727.58 = 1,043.20 : x
  2. Step 2: Convert to fraction form
    1,253.44/1,727.58 = 1,043.20/x
  3. Step 3: Cross multiply
    1,253.44x = 1,727.58 × 1,043.20
  4. Step 4: Simplify right side
    1,253.44x = 1,802,211.46
  5. Step 5: Solve for x
    x = 1,802,211.46/1,253.44
  6. Step 6: Final answer
    x = 1,437.81

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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.