Home / 2,011.21-3,014.38-1,036.78

Finding the Fourth Proportional to 2,011.21, 3,014.38 and 1,036.78

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Solution

The fourth proportional to 2,011.21, 3,014.38 and 1,036.78 is: 1,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.21 : 3,014.38 = 1,036.78 : x
  2. Step 2: Convert to fraction form
    2,011.21/3,014.38 = 1,036.78/x
  3. Step 3: Cross multiply
    2,011.21x = 3,014.38 × 1,036.78
  4. Step 4: Simplify right side
    2,011.21x = 3,125,248.90
  5. Step 5: Solve for x
    x = 3,125,248.90/2,011.21
  6. Step 6: Final answer
    x = 1,553.91

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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.