Home / 3,465.15-4,781.91-2,138.87

Finding the Fourth Proportional to 3,465.15, 4,781.91 and 2,138.87

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Solution

The fourth proportional to 3,465.15, 4,781.91 and 2,138.87 is: 2,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.15 : 4,781.91 = 2,138.87 : x
  2. Step 2: Convert to fraction form
    3,465.15/4,781.91 = 2,138.87/x
  3. Step 3: Cross multiply
    3,465.15x = 4,781.91 × 2,138.87
  4. Step 4: Simplify right side
    3,465.15x = 10,227,859.93
  5. Step 5: Solve for x
    x = 10,227,859.93/3,465.15
  6. Step 6: Final answer
    x = 2,951.64

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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.