Home / 2,782.32-4,158.11-2,231.93

Finding the Fourth Proportional to 2,782.32, 4,158.11 and 2,231.93

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Solution

The fourth proportional to 2,782.32, 4,158.11 and 2,231.93 is: 3,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.32 : 4,158.11 = 2,231.93 : x
  2. Step 2: Convert to fraction form
    2,782.32/4,158.11 = 2,231.93/x
  3. Step 3: Cross multiply
    2,782.32x = 4,158.11 × 2,231.93
  4. Step 4: Simplify right side
    2,782.32x = 9,280,578.50
  5. Step 5: Solve for x
    x = 9,280,578.50/2,782.32
  6. Step 6: Final answer
    x = 3,335.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.