Home / 3,191.75-4,786.55-1,342.52

Finding the Fourth Proportional to 3,191.75, 4,786.55 and 1,342.52

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Solution

The fourth proportional to 3,191.75, 4,786.55 and 1,342.52 is: 2,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.75 : 4,786.55 = 1,342.52 : x
  2. Step 2: Convert to fraction form
    3,191.75/4,786.55 = 1,342.52/x
  3. Step 3: Cross multiply
    3,191.75x = 4,786.55 × 1,342.52
  4. Step 4: Simplify right side
    3,191.75x = 6,426,008.46
  5. Step 5: Solve for x
    x = 6,426,008.46/3,191.75
  6. Step 6: Final answer
    x = 2,013.32

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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.