Home / 3,528.60-5,297.40-2,138.04

Finding the Fourth Proportional to 3,528.60, 5,297.40 and 2,138.04

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Solution

The fourth proportional to 3,528.60, 5,297.40 and 2,138.04 is: 3,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.60 : 5,297.40 = 2,138.04 : x
  2. Step 2: Convert to fraction form
    3,528.60/5,297.40 = 2,138.04/x
  3. Step 3: Cross multiply
    3,528.60x = 5,297.40 × 2,138.04
  4. Step 4: Simplify right side
    3,528.60x = 11,326,053.10
  5. Step 5: Solve for x
    x = 11,326,053.10/3,528.60
  6. Step 6: Final answer
    x = 3,209.79

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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.