Home / 7,145.11-10,718.35-2,213.43

Finding the Fourth Proportional to 7,145.11, 10,718.35 and 2,213.43

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Solution

The fourth proportional to 7,145.11, 10,718.35 and 2,213.43 is: 3,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.11 : 10,718.35 = 2,213.43 : x
  2. Step 2: Convert to fraction form
    7,145.11/10,718.35 = 2,213.43/x
  3. Step 3: Cross multiply
    7,145.11x = 10,718.35 × 2,213.43
  4. Step 4: Simplify right side
    7,145.11x = 23,724,277.94
  5. Step 5: Solve for x
    x = 23,724,277.94/7,145.11
  6. Step 6: Final answer
    x = 3,320.35

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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.