Home / 5,168.98-7,132.08-2,930.68

Finding the Fourth Proportional to 5,168.98, 7,132.08 and 2,930.68

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Solution

The fourth proportional to 5,168.98, 7,132.08 and 2,930.68 is: 4,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.98 : 7,132.08 = 2,930.68 : x
  2. Step 2: Convert to fraction form
    5,168.98/7,132.08 = 2,930.68/x
  3. Step 3: Cross multiply
    5,168.98x = 7,132.08 × 2,930.68
  4. Step 4: Simplify right side
    5,168.98x = 20,901,844.21
  5. Step 5: Solve for x
    x = 20,901,844.21/5,168.98
  6. Step 6: Final answer
    x = 4,043.71

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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.