Home / 1,001.25-1,382.02-581.80

Finding the Fourth Proportional to 1,001.25, 1,382.02 and 581.80

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Solution

The fourth proportional to 1,001.25, 1,382.02 and 581.80 is: 803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001.25 : 1,382.02 = 581.80 : x
  2. Step 2: Convert to fraction form
    1,001.25/1,382.02 = 581.80/x
  3. Step 3: Cross multiply
    1,001.25x = 1,382.02 × 581.80
  4. Step 4: Simplify right side
    1,001.25x = 804,055.18
  5. Step 5: Solve for x
    x = 804,055.18/1,001.25
  6. Step 6: Final answer
    x = 803.05

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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.