Home / 3,522.48-5,284.20-1,330.80

Finding the Fourth Proportional to 3,522.48, 5,284.20 and 1,330.80

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Solution

The fourth proportional to 3,522.48, 5,284.20 and 1,330.80 is: 1,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.48 : 5,284.20 = 1,330.80 : x
  2. Step 2: Convert to fraction form
    3,522.48/5,284.20 = 1,330.80/x
  3. Step 3: Cross multiply
    3,522.48x = 5,284.20 × 1,330.80
  4. Step 4: Simplify right side
    3,522.48x = 7,032,213.36
  5. Step 5: Solve for x
    x = 7,032,213.36/3,522.48
  6. Step 6: Final answer
    x = 1,996.38

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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.