Home / 3,056.38-4,215.62-2,805.11

Finding the Fourth Proportional to 3,056.38, 4,215.62 and 2,805.11

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Solution

The fourth proportional to 3,056.38, 4,215.62 and 2,805.11 is: 3,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.38 : 4,215.62 = 2,805.11 : x
  2. Step 2: Convert to fraction form
    3,056.38/4,215.62 = 2,805.11/x
  3. Step 3: Cross multiply
    3,056.38x = 4,215.62 × 2,805.11
  4. Step 4: Simplify right side
    3,056.38x = 11,825,277.82
  5. Step 5: Solve for x
    x = 11,825,277.82/3,056.38
  6. Step 6: Final answer
    x = 3,869.05

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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.