Home / 3,725.34-5,128.08-3,220.98

Finding the Fourth Proportional to 3,725.34, 5,128.08 and 3,220.98

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Solution

The fourth proportional to 3,725.34, 5,128.08 and 3,220.98 is: 4,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.34 : 5,128.08 = 3,220.98 : x
  2. Step 2: Convert to fraction form
    3,725.34/5,128.08 = 3,220.98/x
  3. Step 3: Cross multiply
    3,725.34x = 5,128.08 × 3,220.98
  4. Step 4: Simplify right side
    3,725.34x = 16,517,443.12
  5. Step 5: Solve for x
    x = 16,517,443.12/3,725.34
  6. Step 6: Final answer
    x = 4,433.81

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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.