Home / 2,752.68-4,127.79-1,291.05

Finding the Fourth Proportional to 2,752.68, 4,127.79 and 1,291.05

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Solution

The fourth proportional to 2,752.68, 4,127.79 and 1,291.05 is: 1,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.68 : 4,127.79 = 1,291.05 : x
  2. Step 2: Convert to fraction form
    2,752.68/4,127.79 = 1,291.05/x
  3. Step 3: Cross multiply
    2,752.68x = 4,127.79 × 1,291.05
  4. Step 4: Simplify right side
    2,752.68x = 5,329,183.28
  5. Step 5: Solve for x
    x = 5,329,183.28/2,752.68
  6. Step 6: Final answer
    x = 1,936.00

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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.