Home / 1,964.58-2,711.10-1,080.36

Finding the Fourth Proportional to 1,964.58, 2,711.10 and 1,080.36

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Solution

The fourth proportional to 1,964.58, 2,711.10 and 1,080.36 is: 1,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.58 : 2,711.10 = 1,080.36 : x
  2. Step 2: Convert to fraction form
    1,964.58/2,711.10 = 1,080.36/x
  3. Step 3: Cross multiply
    1,964.58x = 2,711.10 × 1,080.36
  4. Step 4: Simplify right side
    1,964.58x = 2,928,966.56
  5. Step 5: Solve for x
    x = 2,928,966.56/1,964.58
  6. Step 6: Final answer
    x = 1,490.89

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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.