Home / 5,320.14-7,981.75-2,199.57

Finding the Fourth Proportional to 5,320.14, 7,981.75 and 2,199.57

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Solution

The fourth proportional to 5,320.14, 7,981.75 and 2,199.57 is: 3,299.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.14 : 7,981.75 = 2,199.57 : x
  2. Step 2: Convert to fraction form
    5,320.14/7,981.75 = 2,199.57/x
  3. Step 3: Cross multiply
    5,320.14x = 7,981.75 × 2,199.57
  4. Step 4: Simplify right side
    5,320.14x = 17,556,404.98
  5. Step 5: Solve for x
    x = 17,556,404.98/5,320.14
  6. Step 6: Final answer
    x = 3,299.99

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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.