Home / 2,278.04-3,417.12-1,091.84

Finding the Fourth Proportional to 2,278.04, 3,417.12 and 1,091.84

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Solution

The fourth proportional to 2,278.04, 3,417.12 and 1,091.84 is: 1,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.04 : 3,417.12 = 1,091.84 : x
  2. Step 2: Convert to fraction form
    2,278.04/3,417.12 = 1,091.84/x
  3. Step 3: Cross multiply
    2,278.04x = 3,417.12 × 1,091.84
  4. Step 4: Simplify right side
    2,278.04x = 3,730,948.30
  5. Step 5: Solve for x
    x = 3,730,948.30/2,278.04
  6. Step 6: Final answer
    x = 1,637.79

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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.