Home / 1,964.51-2,711.16-1,080.35

Finding the Fourth Proportional to 1,964.51, 2,711.16 and 1,080.35

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Solution

The fourth proportional to 1,964.51, 2,711.16 and 1,080.35 is: 1,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.51 : 2,711.16 = 1,080.35 : x
  2. Step 2: Convert to fraction form
    1,964.51/2,711.16 = 1,080.35/x
  3. Step 3: Cross multiply
    1,964.51x = 2,711.16 × 1,080.35
  4. Step 4: Simplify right side
    1,964.51x = 2,928,988.15
  5. Step 5: Solve for x
    x = 2,928,988.15/1,964.51
  6. Step 6: Final answer
    x = 1,490.95

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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.