Home / 3,647.43-5,471.69-1,338.75

Finding the Fourth Proportional to 3,647.43, 5,471.69 and 1,338.75

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Solution

The fourth proportional to 3,647.43, 5,471.69 and 1,338.75 is: 2,008.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.43 : 5,471.69 = 1,338.75 : x
  2. Step 2: Convert to fraction form
    3,647.43/5,471.69 = 1,338.75/x
  3. Step 3: Cross multiply
    3,647.43x = 5,471.69 × 1,338.75
  4. Step 4: Simplify right side
    3,647.43x = 7,325,218.29
  5. Step 5: Solve for x
    x = 7,325,218.29/3,647.43
  6. Step 6: Final answer
    x = 2,008.32

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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.