Home / 2,819.52-3,862.48-2,787.92

Finding the Fourth Proportional to 2,819.52, 3,862.48 and 2,787.92

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Solution

The fourth proportional to 2,819.52, 3,862.48 and 2,787.92 is: 3,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.52 : 3,862.48 = 2,787.92 : x
  2. Step 2: Convert to fraction form
    2,819.52/3,862.48 = 2,787.92/x
  3. Step 3: Cross multiply
    2,819.52x = 3,862.48 × 2,787.92
  4. Step 4: Simplify right side
    2,819.52x = 10,768,285.24
  5. Step 5: Solve for x
    x = 10,768,285.24/2,819.52
  6. Step 6: Final answer
    x = 3,819.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.