Home / 2,145.24-3,222.18-2,084.76

Finding the Fourth Proportional to 2,145.24, 3,222.18 and 2,084.76

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Solution

The fourth proportional to 2,145.24, 3,222.18 and 2,084.76 is: 3,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.24 : 3,222.18 = 2,084.76 : x
  2. Step 2: Convert to fraction form
    2,145.24/3,222.18 = 2,084.76/x
  3. Step 3: Cross multiply
    2,145.24x = 3,222.18 × 2,084.76
  4. Step 4: Simplify right side
    2,145.24x = 6,717,471.98
  5. Step 5: Solve for x
    x = 6,717,471.98/2,145.24
  6. Step 6: Final answer
    x = 3,131.34

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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.