Home / 3,622.89-5,428.36-3,320.26

Finding the Fourth Proportional to 3,622.89, 5,428.36 and 3,320.26

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Solution

The fourth proportional to 3,622.89, 5,428.36 and 3,320.26 is: 4,974.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.89 : 5,428.36 = 3,320.26 : x
  2. Step 2: Convert to fraction form
    3,622.89/5,428.36 = 3,320.26/x
  3. Step 3: Cross multiply
    3,622.89x = 5,428.36 × 3,320.26
  4. Step 4: Simplify right side
    3,622.89x = 18,023,566.57
  5. Step 5: Solve for x
    x = 18,023,566.57/3,622.89
  6. Step 6: Final answer
    x = 4,974.91

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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.