Home / 1,877.97-2,817.23-579.13

Finding the Fourth Proportional to 1,877.97, 2,817.23 and 579.13

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Solution

The fourth proportional to 1,877.97, 2,817.23 and 579.13 is: 868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.97 : 2,817.23 = 579.13 : x
  2. Step 2: Convert to fraction form
    1,877.97/2,817.23 = 579.13/x
  3. Step 3: Cross multiply
    1,877.97x = 2,817.23 × 579.13
  4. Step 4: Simplify right side
    1,877.97x = 1,631,539.51
  5. Step 5: Solve for x
    x = 1,631,539.51/1,877.97
  6. Step 6: Final answer
    x = 868.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.