Home / 3,618.68-4,996.02-2,777.78

Finding the Fourth Proportional to 3,618.68, 4,996.02 and 2,777.78

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Solution

The fourth proportional to 3,618.68, 4,996.02 and 2,777.78 is: 3,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.68 : 4,996.02 = 2,777.78 : x
  2. Step 2: Convert to fraction form
    3,618.68/4,996.02 = 2,777.78/x
  3. Step 3: Cross multiply
    3,618.68x = 4,996.02 × 2,777.78
  4. Step 4: Simplify right side
    3,618.68x = 13,877,819.46
  5. Step 5: Solve for x
    x = 13,877,819.46/3,618.68
  6. Step 6: Final answer
    x = 3,835.06

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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.