Home / 2,712.66-3,740.90-1,769.18

Finding the Fourth Proportional to 2,712.66, 3,740.90 and 1,769.18

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Solution

The fourth proportional to 2,712.66, 3,740.90 and 1,769.18 is: 2,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.66 : 3,740.90 = 1,769.18 : x
  2. Step 2: Convert to fraction form
    2,712.66/3,740.90 = 1,769.18/x
  3. Step 3: Cross multiply
    2,712.66x = 3,740.90 × 1,769.18
  4. Step 4: Simplify right side
    2,712.66x = 6,618,307.86
  5. Step 5: Solve for x
    x = 6,618,307.86/2,712.66
  6. Step 6: Final answer
    x = 2,439.79

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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.