Home / 4,212.78-6,319.17-4,005.42

Finding the Fourth Proportional to 4,212.78, 6,319.17 and 4,005.42

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Solution

The fourth proportional to 4,212.78, 6,319.17 and 4,005.42 is: 6,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.78 : 6,319.17 = 4,005.42 : x
  2. Step 2: Convert to fraction form
    4,212.78/6,319.17 = 4,005.42/x
  3. Step 3: Cross multiply
    4,212.78x = 6,319.17 × 4,005.42
  4. Step 4: Simplify right side
    4,212.78x = 25,310,929.90
  5. Step 5: Solve for x
    x = 25,310,929.90/4,212.78
  6. Step 6: Final answer
    x = 6,008.13

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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.