Home / 2,777.73-3,833.28-1,518.78

Finding the Fourth Proportional to 2,777.73, 3,833.28 and 1,518.78

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Solution

The fourth proportional to 2,777.73, 3,833.28 and 1,518.78 is: 2,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.73 : 3,833.28 = 1,518.78 : x
  2. Step 2: Convert to fraction form
    2,777.73/3,833.28 = 1,518.78/x
  3. Step 3: Cross multiply
    2,777.73x = 3,833.28 × 1,518.78
  4. Step 4: Simplify right side
    2,777.73x = 5,821,909.00
  5. Step 5: Solve for x
    x = 5,821,909.00/2,777.73
  6. Step 6: Final answer
    x = 2,095.92

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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.