Home / 1,836.61-2,744.28-1,313.78

Finding the Fourth Proportional to 1,836.61, 2,744.28 and 1,313.78

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Solution

The fourth proportional to 1,836.61, 2,744.28 and 1,313.78 is: 1,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.61 : 2,744.28 = 1,313.78 : x
  2. Step 2: Convert to fraction form
    1,836.61/2,744.28 = 1,313.78/x
  3. Step 3: Cross multiply
    1,836.61x = 2,744.28 × 1,313.78
  4. Step 4: Simplify right side
    1,836.61x = 3,605,366.46
  5. Step 5: Solve for x
    x = 3,605,366.46/1,836.61
  6. Step 6: Final answer
    x = 1,963.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.