Home / 1,881.26-2,821.66-494.70

Finding the Fourth Proportional to 1,881.26, 2,821.66 and 494.70

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Solution

The fourth proportional to 1,881.26, 2,821.66 and 494.70 is: 742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.26 : 2,821.66 = 494.70 : x
  2. Step 2: Convert to fraction form
    1,881.26/2,821.66 = 494.70/x
  3. Step 3: Cross multiply
    1,881.26x = 2,821.66 × 494.70
  4. Step 4: Simplify right side
    1,881.26x = 1,395,886.00
  5. Step 5: Solve for x
    x = 1,395,886.00/1,881.26
  6. Step 6: Final answer
    x = 742.00

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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.