Home / 2,074.11-3,111.17-1,422.87

Finding the Fourth Proportional to 2,074.11, 3,111.17 and 1,422.87

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Solution

The fourth proportional to 2,074.11, 3,111.17 and 1,422.87 is: 2,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.11 : 3,111.17 = 1,422.87 : x
  2. Step 2: Convert to fraction form
    2,074.11/3,111.17 = 1,422.87/x
  3. Step 3: Cross multiply
    2,074.11x = 3,111.17 × 1,422.87
  4. Step 4: Simplify right side
    2,074.11x = 4,426,783.34
  5. Step 5: Solve for x
    x = 4,426,783.34/2,074.11
  6. Step 6: Final answer
    x = 2,134.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.