Home / 1,964.81-2,711.45-1,080.61

Finding the Fourth Proportional to 1,964.81, 2,711.45 and 1,080.61

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Solution

The fourth proportional to 1,964.81, 2,711.45 and 1,080.61 is: 1,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.81 : 2,711.45 = 1,080.61 : x
  2. Step 2: Convert to fraction form
    1,964.81/2,711.45 = 1,080.61/x
  3. Step 3: Cross multiply
    1,964.81x = 2,711.45 × 1,080.61
  4. Step 4: Simplify right side
    1,964.81x = 2,930,015.91
  5. Step 5: Solve for x
    x = 2,930,015.91/1,964.81
  6. Step 6: Final answer
    x = 1,491.24

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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.