Home / 2,211.32-3,315.14-1,040.74

Finding the Fourth Proportional to 2,211.32, 3,315.14 and 1,040.74

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Solution

The fourth proportional to 2,211.32, 3,315.14 and 1,040.74 is: 1,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.32 : 3,315.14 = 1,040.74 : x
  2. Step 2: Convert to fraction form
    2,211.32/3,315.14 = 1,040.74/x
  3. Step 3: Cross multiply
    2,211.32x = 3,315.14 × 1,040.74
  4. Step 4: Simplify right side
    2,211.32x = 3,450,198.80
  5. Step 5: Solve for x
    x = 3,450,198.80/2,211.32
  6. Step 6: Final answer
    x = 1,560.24

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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.