Home / 5,168.25-7,132.38-2,930.10

Finding the Fourth Proportional to 5,168.25, 7,132.38 and 2,930.10

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Solution

The fourth proportional to 5,168.25, 7,132.38 and 2,930.10 is: 4,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.25 : 7,132.38 = 2,930.10 : x
  2. Step 2: Convert to fraction form
    5,168.25/7,132.38 = 2,930.10/x
  3. Step 3: Cross multiply
    5,168.25x = 7,132.38 × 2,930.10
  4. Step 4: Simplify right side
    5,168.25x = 20,898,586.64
  5. Step 5: Solve for x
    x = 20,898,586.64/5,168.25
  6. Step 6: Final answer
    x = 4,043.65

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1.5x scale

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.