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Finding the Fourth Proportional to 2,793.68, 3,854.28 and 1,860.56

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Solution

The fourth proportional to 2,793.68, 3,854.28 and 1,860.56 is: 2,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,793.68 : 3,854.28 = 1,860.56 : x
  2. Step 2: Convert to fraction form
    2,793.68/3,854.28 = 1,860.56/x
  3. Step 3: Cross multiply
    2,793.68x = 3,854.28 × 1,860.56
  4. Step 4: Simplify right side
    2,793.68x = 7,171,119.20
  5. Step 5: Solve for x
    x = 7,171,119.20/2,793.68
  6. Step 6: Final answer
    x = 2,566.91

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1.5x scale

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.