Home / 3,442.31-5,160.87-1,686.77

Finding the Fourth Proportional to 3,442.31, 5,160.87 and 1,686.77

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Solution

The fourth proportional to 3,442.31, 5,160.87 and 1,686.77 is: 2,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.31 : 5,160.87 = 1,686.77 : x
  2. Step 2: Convert to fraction form
    3,442.31/5,160.87 = 1,686.77/x
  3. Step 3: Cross multiply
    3,442.31x = 5,160.87 × 1,686.77
  4. Step 4: Simplify right side
    3,442.31x = 8,705,174.89
  5. Step 5: Solve for x
    x = 8,705,174.89/3,442.31
  6. Step 6: Final answer
    x = 2,528.88

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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.