Home / 2,191.68-3,283.20-1,539.84

Finding the Fourth Proportional to 2,191.68, 3,283.20 and 1,539.84

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Solution

The fourth proportional to 2,191.68, 3,283.20 and 1,539.84 is: 2,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.68 : 3,283.20 = 1,539.84 : x
  2. Step 2: Convert to fraction form
    2,191.68/3,283.20 = 1,539.84/x
  3. Step 3: Cross multiply
    2,191.68x = 3,283.20 × 1,539.84
  4. Step 4: Simplify right side
    2,191.68x = 5,055,602.69
  5. Step 5: Solve for x
    x = 5,055,602.69/2,191.68
  6. Step 6: Final answer
    x = 2,306.72

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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.