Home / 3,465.06-4,781.99-2,138.79

Finding the Fourth Proportional to 3,465.06, 4,781.99 and 2,138.79

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Solution

The fourth proportional to 3,465.06, 4,781.99 and 2,138.79 is: 2,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.06 : 4,781.99 = 2,138.79 : x
  2. Step 2: Convert to fraction form
    3,465.06/4,781.99 = 2,138.79/x
  3. Step 3: Cross multiply
    3,465.06x = 4,781.99 × 2,138.79
  4. Step 4: Simplify right side
    3,465.06x = 10,227,661.70
  5. Step 5: Solve for x
    x = 10,227,661.70/3,465.06
  6. Step 6: Final answer
    x = 2,951.66

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1.5x scale

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.