Home / 2,617.90-3,929.61-1,580.44

Finding the Fourth Proportional to 2,617.90, 3,929.61 and 1,580.44

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Solution

The fourth proportional to 2,617.90, 3,929.61 and 1,580.44 is: 2,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.90 : 3,929.61 = 1,580.44 : x
  2. Step 2: Convert to fraction form
    2,617.90/3,929.61 = 1,580.44/x
  3. Step 3: Cross multiply
    2,617.90x = 3,929.61 × 1,580.44
  4. Step 4: Simplify right side
    2,617.90x = 6,210,512.83
  5. Step 5: Solve for x
    x = 6,210,512.83/2,617.90
  6. Step 6: Final answer
    x = 2,372.33

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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.