Home / 5,147.40-7,103.52-3,052.56

Finding the Fourth Proportional to 5,147.40, 7,103.52 and 3,052.56

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Solution

The fourth proportional to 5,147.40, 7,103.52 and 3,052.56 is: 4,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.40 : 7,103.52 = 3,052.56 : x
  2. Step 2: Convert to fraction form
    5,147.40/7,103.52 = 3,052.56/x
  3. Step 3: Cross multiply
    5,147.40x = 7,103.52 × 3,052.56
  4. Step 4: Simplify right side
    5,147.40x = 21,683,921.01
  5. Step 5: Solve for x
    x = 21,683,921.01/5,147.40
  6. Step 6: Final answer
    x = 4,212.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.