Home / 4,121.66-6,182.70-1,200.19

Finding the Fourth Proportional to 4,121.66, 6,182.70 and 1,200.19

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Solution

The fourth proportional to 4,121.66, 6,182.70 and 1,200.19 is: 1,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.66 : 6,182.70 = 1,200.19 : x
  2. Step 2: Convert to fraction form
    4,121.66/6,182.70 = 1,200.19/x
  3. Step 3: Cross multiply
    4,121.66x = 6,182.70 × 1,200.19
  4. Step 4: Simplify right side
    4,121.66x = 7,420,414.71
  5. Step 5: Solve for x
    x = 7,420,414.71/4,121.66
  6. Step 6: Final answer
    x = 1,800.35

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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.