Home / 3,310.72-4,966.08-2,158.72

Finding the Fourth Proportional to 3,310.72, 4,966.08 and 2,158.72

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Solution

The fourth proportional to 3,310.72, 4,966.08 and 2,158.72 is: 3,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.72 : 4,966.08 = 2,158.72 : x
  2. Step 2: Convert to fraction form
    3,310.72/4,966.08 = 2,158.72/x
  3. Step 3: Cross multiply
    3,310.72x = 4,966.08 × 2,158.72
  4. Step 4: Simplify right side
    3,310.72x = 10,720,376.22
  5. Step 5: Solve for x
    x = 10,720,376.22/3,310.72
  6. Step 6: Final answer
    x = 3,238.08

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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.