Home / 3,154.56-4,729.38-1,921.32

Finding the Fourth Proportional to 3,154.56, 4,729.38 and 1,921.32

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Solution

The fourth proportional to 3,154.56, 4,729.38 and 1,921.32 is: 2,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.56 : 4,729.38 = 1,921.32 : x
  2. Step 2: Convert to fraction form
    3,154.56/4,729.38 = 1,921.32/x
  3. Step 3: Cross multiply
    3,154.56x = 4,729.38 × 1,921.32
  4. Step 4: Simplify right side
    3,154.56x = 9,086,652.38
  5. Step 5: Solve for x
    x = 9,086,652.38/3,154.56
  6. Step 6: Final answer
    x = 2,880.48

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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.