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Finding the Fourth Proportional to 2,603.77, 3,900.49 and 2,391.14

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Solution

The fourth proportional to 2,603.77, 3,900.49 and 2,391.14 is: 3,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.77 : 3,900.49 = 2,391.14 : x
  2. Step 2: Convert to fraction form
    2,603.77/3,900.49 = 2,391.14/x
  3. Step 3: Cross multiply
    2,603.77x = 3,900.49 × 2,391.14
  4. Step 4: Simplify right side
    2,603.77x = 9,326,621.43
  5. Step 5: Solve for x
    x = 9,326,621.43/2,603.77
  6. Step 6: Final answer
    x = 3,581.97

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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.