Home / 3,872.10-5,807.70-1,679.04

Finding the Fourth Proportional to 3,872.10, 5,807.70 and 1,679.04

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Solution

The fourth proportional to 3,872.10, 5,807.70 and 1,679.04 is: 2,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.10 : 5,807.70 = 1,679.04 : x
  2. Step 2: Convert to fraction form
    3,872.10/5,807.70 = 1,679.04/x
  3. Step 3: Cross multiply
    3,872.10x = 5,807.70 × 1,679.04
  4. Step 4: Simplify right side
    3,872.10x = 9,751,360.61
  5. Step 5: Solve for x
    x = 9,751,360.61/3,872.10
  6. Step 6: Final answer
    x = 2,518.36

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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.