Home / 5,111.76-7,054.85-2,873.73

Finding the Fourth Proportional to 5,111.76, 7,054.85 and 2,873.73

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Solution

The fourth proportional to 5,111.76, 7,054.85 and 2,873.73 is: 3,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.76 : 7,054.85 = 2,873.73 : x
  2. Step 2: Convert to fraction form
    5,111.76/7,054.85 = 2,873.73/x
  3. Step 3: Cross multiply
    5,111.76x = 7,054.85 × 2,873.73
  4. Step 4: Simplify right side
    5,111.76x = 20,273,734.09
  5. Step 5: Solve for x
    x = 20,273,734.09/5,111.76
  6. Step 6: Final answer
    x = 3,966.10

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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.