Home / 3,205.36-4,781.91-3,123.96

Finding the Fourth Proportional to 3,205.36, 4,781.91 and 3,123.96

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Solution

The fourth proportional to 3,205.36, 4,781.91 and 3,123.96 is: 4,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.36 : 4,781.91 = 3,123.96 : x
  2. Step 2: Convert to fraction form
    3,205.36/4,781.91 = 3,123.96/x
  3. Step 3: Cross multiply
    3,205.36x = 4,781.91 × 3,123.96
  4. Step 4: Simplify right side
    3,205.36x = 14,938,495.56
  5. Step 5: Solve for x
    x = 14,938,495.56/3,205.36
  6. Step 6: Final answer
    x = 4,660.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.