Home / 3,213.20-4,820.72-1,266.77

Finding the Fourth Proportional to 3,213.20, 4,820.72 and 1,266.77

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Solution

The fourth proportional to 3,213.20, 4,820.72 and 1,266.77 is: 1,900.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.20 : 4,820.72 = 1,266.77 : x
  2. Step 2: Convert to fraction form
    3,213.20/4,820.72 = 1,266.77/x
  3. Step 3: Cross multiply
    3,213.20x = 4,820.72 × 1,266.77
  4. Step 4: Simplify right side
    3,213.20x = 6,106,713.04
  5. Step 5: Solve for x
    x = 6,106,713.04/3,213.20
  6. Step 6: Final answer
    x = 1,900.51

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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.