Home / 1,727.04-2,382.64-980.90

Finding the Fourth Proportional to 1,727.04, 2,382.64 and 980.90

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Solution

The fourth proportional to 1,727.04, 2,382.64 and 980.90 is: 1,353.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.04 : 2,382.64 = 980.90 : x
  2. Step 2: Convert to fraction form
    1,727.04/2,382.64 = 980.90/x
  3. Step 3: Cross multiply
    1,727.04x = 2,382.64 × 980.90
  4. Step 4: Simplify right side
    1,727.04x = 2,337,131.66
  5. Step 5: Solve for x
    x = 2,337,131.66/1,727.04
  6. Step 6: Final answer
    x = 1,353.26

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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.