Home / 2,291.29-3,159.90-1,619.55

Finding the Fourth Proportional to 2,291.29, 3,159.90 and 1,619.55

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Solution

The fourth proportional to 2,291.29, 3,159.90 and 1,619.55 is: 2,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.29 : 3,159.90 = 1,619.55 : x
  2. Step 2: Convert to fraction form
    2,291.29/3,159.90 = 1,619.55/x
  3. Step 3: Cross multiply
    2,291.29x = 3,159.90 × 1,619.55
  4. Step 4: Simplify right side
    2,291.29x = 5,117,616.05
  5. Step 5: Solve for x
    x = 5,117,616.05/2,291.29
  6. Step 6: Final answer
    x = 2,233.51

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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.