Home / 7,198.40-10,800.74-2,521.77

Finding the Fourth Proportional to 7,198.40, 10,800.74 and 2,521.77

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Solution

The fourth proportional to 7,198.40, 10,800.74 and 2,521.77 is: 3,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.40 : 10,800.74 = 2,521.77 : x
  2. Step 2: Convert to fraction form
    7,198.40/10,800.74 = 2,521.77/x
  3. Step 3: Cross multiply
    7,198.40x = 10,800.74 × 2,521.77
  4. Step 4: Simplify right side
    7,198.40x = 27,236,982.11
  5. Step 5: Solve for x
    x = 27,236,982.11/7,198.40
  6. Step 6: Final answer
    x = 3,783.76

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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.