Home / 8,869.20-13,301.40-2,629.20

Finding the Fourth Proportional to 8,869.20, 13,301.40 and 2,629.20

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Solution

The fourth proportional to 8,869.20, 13,301.40 and 2,629.20 is: 3,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.20 : 13,301.40 = 2,629.20 : x
  2. Step 2: Convert to fraction form
    8,869.20/13,301.40 = 2,629.20/x
  3. Step 3: Cross multiply
    8,869.20x = 13,301.40 × 2,629.20
  4. Step 4: Simplify right side
    8,869.20x = 34,972,040.88
  5. Step 5: Solve for x
    x = 34,972,040.88/8,869.20
  6. Step 6: Final answer
    x = 3,943.09

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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.