Home / 3,129.18-4,689.10-2,852.56

Finding the Fourth Proportional to 3,129.18, 4,689.10 and 2,852.56

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Solution

The fourth proportional to 3,129.18, 4,689.10 and 2,852.56 is: 4,274.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.18 : 4,689.10 = 2,852.56 : x
  2. Step 2: Convert to fraction form
    3,129.18/4,689.10 = 2,852.56/x
  3. Step 3: Cross multiply
    3,129.18x = 4,689.10 × 2,852.56
  4. Step 4: Simplify right side
    3,129.18x = 13,375,939.10
  5. Step 5: Solve for x
    x = 13,375,939.10/3,129.18
  6. Step 6: Final answer
    x = 4,274.58

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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.