Home / 3,369.36-4,648.84-2,111

Finding the Fourth Proportional to 3,369.36, 4,648.84 and 2,111

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Solution

The fourth proportional to 3,369.36, 4,648.84 and 2,111 is: 2,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.36 : 4,648.84 = 2,111 : x
  2. Step 2: Convert to fraction form
    3,369.36/4,648.84 = 2,111/x
  3. Step 3: Cross multiply
    3,369.36x = 4,648.84 × 2,111
  4. Step 4: Simplify right side
    3,369.36x = 9,813,701.24
  5. Step 5: Solve for x
    x = 9,813,701.24/3,369.36
  6. Step 6: Final answer
    x = 2,912.63

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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.