Home / 4,201.20-6,298.71-2,120.19

Finding the Fourth Proportional to 4,201.20, 6,298.71 and 2,120.19

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Solution

The fourth proportional to 4,201.20, 6,298.71 and 2,120.19 is: 3,178.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.20 : 6,298.71 = 2,120.19 : x
  2. Step 2: Convert to fraction form
    4,201.20/6,298.71 = 2,120.19/x
  3. Step 3: Cross multiply
    4,201.20x = 6,298.71 × 2,120.19
  4. Step 4: Simplify right side
    4,201.20x = 13,354,461.95
  5. Step 5: Solve for x
    x = 13,354,461.95/4,201.20
  6. Step 6: Final answer
    x = 3,178.73

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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.