Home / 1,962.30-2,942.97-575.27

Finding the Fourth Proportional to 1,962.30, 2,942.97 and 575.27

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Solution

The fourth proportional to 1,962.30, 2,942.97 and 575.27 is: 862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.30 : 2,942.97 = 575.27 : x
  2. Step 2: Convert to fraction form
    1,962.30/2,942.97 = 575.27/x
  3. Step 3: Cross multiply
    1,962.30x = 2,942.97 × 575.27
  4. Step 4: Simplify right side
    1,962.30x = 1,692,987.64
  5. Step 5: Solve for x
    x = 1,692,987.64/1,962.30
  6. Step 6: Final answer
    x = 862.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.