Home / 4,267.50-6,391.29-4,119.70

Finding the Fourth Proportional to 4,267.50, 6,391.29 and 4,119.70

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Solution

The fourth proportional to 4,267.50, 6,391.29 and 4,119.70 is: 6,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.50 : 6,391.29 = 4,119.70 : x
  2. Step 2: Convert to fraction form
    4,267.50/6,391.29 = 4,119.70/x
  3. Step 3: Cross multiply
    4,267.50x = 6,391.29 × 4,119.70
  4. Step 4: Simplify right side
    4,267.50x = 26,330,197.41
  5. Step 5: Solve for x
    x = 26,330,197.41/4,267.50
  6. Step 6: Final answer
    x = 6,169.93

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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.