Home / 1,973.68-2,724.28-1,442.88

Finding the Fourth Proportional to 1,973.68, 2,724.28 and 1,442.88

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Solution

The fourth proportional to 1,973.68, 2,724.28 and 1,442.88 is: 1,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.68 : 2,724.28 = 1,442.88 : x
  2. Step 2: Convert to fraction form
    1,973.68/2,724.28 = 1,442.88/x
  3. Step 3: Cross multiply
    1,973.68x = 2,724.28 × 1,442.88
  4. Step 4: Simplify right side
    1,973.68x = 3,930,809.13
  5. Step 5: Solve for x
    x = 3,930,809.13/1,973.68
  6. Step 6: Final answer
    x = 1,991.61

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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.