Home / 3,191.48-4,789.38-1,243.44

Finding the Fourth Proportional to 3,191.48, 4,789.38 and 1,243.44

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Solution

The fourth proportional to 3,191.48, 4,789.38 and 1,243.44 is: 1,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.48 : 4,789.38 = 1,243.44 : x
  2. Step 2: Convert to fraction form
    3,191.48/4,789.38 = 1,243.44/x
  3. Step 3: Cross multiply
    3,191.48x = 4,789.38 × 1,243.44
  4. Step 4: Simplify right side
    3,191.48x = 5,955,306.67
  5. Step 5: Solve for x
    x = 5,955,306.67/3,191.48
  6. Step 6: Final answer
    x = 1,866.00

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1.5x scale

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.