Home / 3,213.84-4,821.57-3,158.76

Finding the Fourth Proportional to 3,213.84, 4,821.57 and 3,158.76

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Solution

The fourth proportional to 3,213.84, 4,821.57 and 3,158.76 is: 4,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.84 : 4,821.57 = 3,158.76 : x
  2. Step 2: Convert to fraction form
    3,213.84/4,821.57 = 3,158.76/x
  3. Step 3: Cross multiply
    3,213.84x = 4,821.57 × 3,158.76
  4. Step 4: Simplify right side
    3,213.84x = 15,230,182.45
  5. Step 5: Solve for x
    x = 15,230,182.45/3,213.84
  6. Step 6: Final answer
    x = 4,738.94

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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.