Home / 7,381.68-11,070.62-2,186.34

Finding the Fourth Proportional to 7,381.68, 11,070.62 and 2,186.34

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Solution

The fourth proportional to 7,381.68, 11,070.62 and 2,186.34 is: 3,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.68 : 11,070.62 = 2,186.34 : x
  2. Step 2: Convert to fraction form
    7,381.68/11,070.62 = 2,186.34/x
  3. Step 3: Cross multiply
    7,381.68x = 11,070.62 × 2,186.34
  4. Step 4: Simplify right side
    7,381.68x = 24,204,083.98
  5. Step 5: Solve for x
    x = 24,204,083.98/7,381.68
  6. Step 6: Final answer
    x = 3,278.94

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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.