Home / 3,551.44-5,320.68-1,983.28

Finding the Fourth Proportional to 3,551.44, 5,320.68 and 1,983.28

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Solution

The fourth proportional to 3,551.44, 5,320.68 and 1,983.28 is: 2,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.44 : 5,320.68 = 1,983.28 : x
  2. Step 2: Convert to fraction form
    3,551.44/5,320.68 = 1,983.28/x
  3. Step 3: Cross multiply
    3,551.44x = 5,320.68 × 1,983.28
  4. Step 4: Simplify right side
    3,551.44x = 10,552,398.23
  5. Step 5: Solve for x
    x = 10,552,398.23/3,551.44
  6. Step 6: Final answer
    x = 2,971.30

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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.