Home / 4,120.09-6,178.12-2,039.42

Finding the Fourth Proportional to 4,120.09, 6,178.12 and 2,039.42

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Solution

The fourth proportional to 4,120.09, 6,178.12 and 2,039.42 is: 3,058.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.09 : 6,178.12 = 2,039.42 : x
  2. Step 2: Convert to fraction form
    4,120.09/6,178.12 = 2,039.42/x
  3. Step 3: Cross multiply
    4,120.09x = 6,178.12 × 2,039.42
  4. Step 4: Simplify right side
    4,120.09x = 12,599,781.49
  5. Step 5: Solve for x
    x = 12,599,781.49/4,120.09
  6. Step 6: Final answer
    x = 3,058.13

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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.