Home / 2,712.38-4,066.70-1,069.11

Finding the Fourth Proportional to 2,712.38, 4,066.70 and 1,069.11

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Solution

The fourth proportional to 2,712.38, 4,066.70 and 1,069.11 is: 1,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.38 : 4,066.70 = 1,069.11 : x
  2. Step 2: Convert to fraction form
    2,712.38/4,066.70 = 1,069.11/x
  3. Step 3: Cross multiply
    2,712.38x = 4,066.70 × 1,069.11
  4. Step 4: Simplify right side
    2,712.38x = 4,347,744.29
  5. Step 5: Solve for x
    x = 4,347,744.29/2,712.38
  6. Step 6: Final answer
    x = 1,602.93

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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.