Home / 3,159.20-4,742.90-2,429.29

Finding the Fourth Proportional to 3,159.20, 4,742.90 and 2,429.29

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Solution

The fourth proportional to 3,159.20, 4,742.90 and 2,429.29 is: 3,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.20 : 4,742.90 = 2,429.29 : x
  2. Step 2: Convert to fraction form
    3,159.20/4,742.90 = 2,429.29/x
  3. Step 3: Cross multiply
    3,159.20x = 4,742.90 × 2,429.29
  4. Step 4: Simplify right side
    3,159.20x = 11,521,896.10
  5. Step 5: Solve for x
    x = 11,521,896.10/3,159.20
  6. Step 6: Final answer
    x = 3,647.09

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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.