Home / 4,981.24-6,877.78-3,213.88

Finding the Fourth Proportional to 4,981.24, 6,877.78 and 3,213.88

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Solution

The fourth proportional to 4,981.24, 6,877.78 and 3,213.88 is: 4,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.24 : 6,877.78 = 3,213.88 : x
  2. Step 2: Convert to fraction form
    4,981.24/6,877.78 = 3,213.88/x
  3. Step 3: Cross multiply
    4,981.24x = 6,877.78 × 3,213.88
  4. Step 4: Simplify right side
    4,981.24x = 22,104,359.59
  5. Step 5: Solve for x
    x = 22,104,359.59/4,981.24
  6. Step 6: Final answer
    x = 4,437.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.