Home / 3,721.36-5,122.59-3,216.98

Finding the Fourth Proportional to 3,721.36, 5,122.59 and 3,216.98

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Solution

The fourth proportional to 3,721.36, 5,122.59 and 3,216.98 is: 4,428.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.36 : 5,122.59 = 3,216.98 : x
  2. Step 2: Convert to fraction form
    3,721.36/5,122.59 = 3,216.98/x
  3. Step 3: Cross multiply
    3,721.36x = 5,122.59 × 3,216.98
  4. Step 4: Simplify right side
    3,721.36x = 16,479,269.58
  5. Step 5: Solve for x
    x = 16,479,269.58/3,721.36
  6. Step 6: Final answer
    x = 4,428.29

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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.