Home / 3,538.80-4,882.14-2,122.53

Finding the Fourth Proportional to 3,538.80, 4,882.14 and 2,122.53

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Solution

The fourth proportional to 3,538.80, 4,882.14 and 2,122.53 is: 2,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.80 : 4,882.14 = 2,122.53 : x
  2. Step 2: Convert to fraction form
    3,538.80/4,882.14 = 2,122.53/x
  3. Step 3: Cross multiply
    3,538.80x = 4,882.14 × 2,122.53
  4. Step 4: Simplify right side
    3,538.80x = 10,362,475.08
  5. Step 5: Solve for x
    x = 10,362,475.08/3,538.80
  6. Step 6: Final answer
    x = 2,928.24

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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.