Home / 5,538.21-7,640.02-3,299.37

Finding the Fourth Proportional to 5,538.21, 7,640.02 and 3,299.37

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Solution

The fourth proportional to 5,538.21, 7,640.02 and 3,299.37 is: 4,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.21 : 7,640.02 = 3,299.37 : x
  2. Step 2: Convert to fraction form
    5,538.21/7,640.02 = 3,299.37/x
  3. Step 3: Cross multiply
    5,538.21x = 7,640.02 × 3,299.37
  4. Step 4: Simplify right side
    5,538.21x = 25,207,252.79
  5. Step 5: Solve for x
    x = 25,207,252.79/5,538.21
  6. Step 6: Final answer
    x = 4,551.52

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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.