Home / 2,835.78-4,251.62-1,909.04

Finding the Fourth Proportional to 2,835.78, 4,251.62 and 1,909.04

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Solution

The fourth proportional to 2,835.78, 4,251.62 and 1,909.04 is: 2,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.78 : 4,251.62 = 1,909.04 : x
  2. Step 2: Convert to fraction form
    2,835.78/4,251.62 = 1,909.04/x
  3. Step 3: Cross multiply
    2,835.78x = 4,251.62 × 1,909.04
  4. Step 4: Simplify right side
    2,835.78x = 8,116,512.64
  5. Step 5: Solve for x
    x = 8,116,512.64/2,835.78
  6. Step 6: Final answer
    x = 2,862.18

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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.