Home / 1,891.43-2,837.55-575.22

Finding the Fourth Proportional to 1,891.43, 2,837.55 and 575.22

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Solution

The fourth proportional to 1,891.43, 2,837.55 and 575.22 is: 862.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.43 : 2,837.55 = 575.22 : x
  2. Step 2: Convert to fraction form
    1,891.43/2,837.55 = 575.22/x
  3. Step 3: Cross multiply
    1,891.43x = 2,837.55 × 575.22
  4. Step 4: Simplify right side
    1,891.43x = 1,632,215.51
  5. Step 5: Solve for x
    x = 1,632,215.51/1,891.43
  6. Step 6: Final answer
    x = 862.95

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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.