Home / 3,621.32-5,427.06-1,538.70

Finding the Fourth Proportional to 3,621.32, 5,427.06 and 1,538.70

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Solution

The fourth proportional to 3,621.32, 5,427.06 and 1,538.70 is: 2,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.32 : 5,427.06 = 1,538.70 : x
  2. Step 2: Convert to fraction form
    3,621.32/5,427.06 = 1,538.70/x
  3. Step 3: Cross multiply
    3,621.32x = 5,427.06 × 1,538.70
  4. Step 4: Simplify right side
    3,621.32x = 8,350,617.22
  5. Step 5: Solve for x
    x = 8,350,617.22/3,621.32
  6. Step 6: Final answer
    x = 2,305.96

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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.