Home / 3,388.70-4,675.65-2,191.52

Finding the Fourth Proportional to 3,388.70, 4,675.65 and 2,191.52

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Solution

The fourth proportional to 3,388.70, 4,675.65 and 2,191.52 is: 3,023.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.70 : 4,675.65 = 2,191.52 : x
  2. Step 2: Convert to fraction form
    3,388.70/4,675.65 = 2,191.52/x
  3. Step 3: Cross multiply
    3,388.70x = 4,675.65 × 2,191.52
  4. Step 4: Simplify right side
    3,388.70x = 10,246,780.49
  5. Step 5: Solve for x
    x = 10,246,780.49/3,388.70
  6. Step 6: Final answer
    x = 3,023.81

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1.5x scale

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.