Home / 3,625.92-5,431.28-2,320.80

Finding the Fourth Proportional to 3,625.92, 5,431.28 and 2,320.80

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Solution

The fourth proportional to 3,625.92, 5,431.28 and 2,320.80 is: 3,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.92 : 5,431.28 = 2,320.80 : x
  2. Step 2: Convert to fraction form
    3,625.92/5,431.28 = 2,320.80/x
  3. Step 3: Cross multiply
    3,625.92x = 5,431.28 × 2,320.80
  4. Step 4: Simplify right side
    3,625.92x = 12,604,914.62
  5. Step 5: Solve for x
    x = 12,604,914.62/3,625.92
  6. Step 6: Final answer
    x = 3,476.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.