Home / 1,987.23-2,977.48-1,204.85

Finding the Fourth Proportional to 1,987.23, 2,977.48 and 1,204.85

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Solution

The fourth proportional to 1,987.23, 2,977.48 and 1,204.85 is: 1,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.23 : 2,977.48 = 1,204.85 : x
  2. Step 2: Convert to fraction form
    1,987.23/2,977.48 = 1,204.85/x
  3. Step 3: Cross multiply
    1,987.23x = 2,977.48 × 1,204.85
  4. Step 4: Simplify right side
    1,987.23x = 3,587,425.73
  5. Step 5: Solve for x
    x = 3,587,425.73/1,987.23
  6. Step 6: Final answer
    x = 1,805.24

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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.