Home / 3,538.32-4,882.14-2,140.80

Finding the Fourth Proportional to 3,538.32, 4,882.14 and 2,140.80

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Solution

The fourth proportional to 3,538.32, 4,882.14 and 2,140.80 is: 2,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.32 : 4,882.14 = 2,140.80 : x
  2. Step 2: Convert to fraction form
    3,538.32/4,882.14 = 2,140.80/x
  3. Step 3: Cross multiply
    3,538.32x = 4,882.14 × 2,140.80
  4. Step 4: Simplify right side
    3,538.32x = 10,451,685.31
  5. Step 5: Solve for x
    x = 10,451,685.31/3,538.32
  6. Step 6: Final answer
    x = 2,953.86

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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.