Home / 7,249.21-10,870.38-2,808.95

Finding the Fourth Proportional to 7,249.21, 10,870.38 and 2,808.95

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Solution

The fourth proportional to 7,249.21, 10,870.38 and 2,808.95 is: 4,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.21 : 10,870.38 = 2,808.95 : x
  2. Step 2: Convert to fraction form
    7,249.21/10,870.38 = 2,808.95/x
  3. Step 3: Cross multiply
    7,249.21x = 10,870.38 × 2,808.95
  4. Step 4: Simplify right side
    7,249.21x = 30,534,353.90
  5. Step 5: Solve for x
    x = 30,534,353.90/7,249.21
  6. Step 6: Final answer
    x = 4,212.09

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1.5x scale

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.