Home / 7,219.78-10,833.99-4,143.94

Finding the Fourth Proportional to 7,219.78, 10,833.99 and 4,143.94

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Solution

The fourth proportional to 7,219.78, 10,833.99 and 4,143.94 is: 6,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.78 : 10,833.99 = 4,143.94 : x
  2. Step 2: Convert to fraction form
    7,219.78/10,833.99 = 4,143.94/x
  3. Step 3: Cross multiply
    7,219.78x = 10,833.99 × 4,143.94
  4. Step 4: Simplify right side
    7,219.78x = 44,895,404.52
  5. Step 5: Solve for x
    x = 44,895,404.52/7,219.78
  6. Step 6: Final answer
    x = 6,218.39

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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.