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Finding the Fourth Proportional to 3,607.92, 4,977.78 and 2,035.71

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Solution

The fourth proportional to 3,607.92, 4,977.78 and 2,035.71 is: 2,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.92 : 4,977.78 = 2,035.71 : x
  2. Step 2: Convert to fraction form
    3,607.92/4,977.78 = 2,035.71/x
  3. Step 3: Cross multiply
    3,607.92x = 4,977.78 × 2,035.71
  4. Step 4: Simplify right side
    3,607.92x = 10,133,316.52
  5. Step 5: Solve for x
    x = 10,133,316.52/3,607.92
  6. Step 6: Final answer
    x = 2,808.63

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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.