Home / 5,119.35-7,671.81-4,074.71

Finding the Fourth Proportional to 5,119.35, 7,671.81 and 4,074.71

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Solution

The fourth proportional to 5,119.35, 7,671.81 and 4,074.71 is: 6,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.35 : 7,671.81 = 4,074.71 : x
  2. Step 2: Convert to fraction form
    5,119.35/7,671.81 = 4,074.71/x
  3. Step 3: Cross multiply
    5,119.35x = 7,671.81 × 4,074.71
  4. Step 4: Simplify right side
    5,119.35x = 31,260,377.85
  5. Step 5: Solve for x
    x = 31,260,377.85/5,119.35
  6. Step 6: Final answer
    x = 6,106.32

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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.