Home / 2,778.26-4,159.08-1,679.29

Finding the Fourth Proportional to 2,778.26, 4,159.08 and 1,679.29

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Solution

The fourth proportional to 2,778.26, 4,159.08 and 1,679.29 is: 2,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.26 : 4,159.08 = 1,679.29 : x
  2. Step 2: Convert to fraction form
    2,778.26/4,159.08 = 1,679.29/x
  3. Step 3: Cross multiply
    2,778.26x = 4,159.08 × 1,679.29
  4. Step 4: Simplify right side
    2,778.26x = 6,984,291.06
  5. Step 5: Solve for x
    x = 6,984,291.06/2,778.26
  6. Step 6: Final answer
    x = 2,513.91

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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.