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Finding the Fourth Proportional to 4,811.75, 6,640.22 and 2,603.75

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Solution

The fourth proportional to 4,811.75, 6,640.22 and 2,603.75 is: 3,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.75 : 6,640.22 = 2,603.75 : x
  2. Step 2: Convert to fraction form
    4,811.75/6,640.22 = 2,603.75/x
  3. Step 3: Cross multiply
    4,811.75x = 6,640.22 × 2,603.75
  4. Step 4: Simplify right side
    4,811.75x = 17,289,472.83
  5. Step 5: Solve for x
    x = 17,289,472.83/4,811.75
  6. Step 6: Final answer
    x = 3,593.18

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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.