Home / 2,772.20-3,826.40-1,875.52

Finding the Fourth Proportional to 2,772.20, 3,826.40 and 1,875.52

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Solution

The fourth proportional to 2,772.20, 3,826.40 and 1,875.52 is: 2,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.20 : 3,826.40 = 1,875.52 : x
  2. Step 2: Convert to fraction form
    2,772.20/3,826.40 = 1,875.52/x
  3. Step 3: Cross multiply
    2,772.20x = 3,826.40 × 1,875.52
  4. Step 4: Simplify right side
    2,772.20x = 7,176,489.73
  5. Step 5: Solve for x
    x = 7,176,489.73/2,772.20
  6. Step 6: Final answer
    x = 2,588.73

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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.