Home / 2,757.18-3,812.40-2,712.68

Finding the Fourth Proportional to 2,757.18, 3,812.40 and 2,712.68

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Solution

The fourth proportional to 2,757.18, 3,812.40 and 2,712.68 is: 3,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.18 : 3,812.40 = 2,712.68 : x
  2. Step 2: Convert to fraction form
    2,757.18/3,812.40 = 2,712.68/x
  3. Step 3: Cross multiply
    2,757.18x = 3,812.40 × 2,712.68
  4. Step 4: Simplify right side
    2,757.18x = 10,341,821.23
  5. Step 5: Solve for x
    x = 10,341,821.23/2,757.18
  6. Step 6: Final answer
    x = 3,750.87

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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.