Home / 3,679.93-5,516.55-1,338.28

Finding the Fourth Proportional to 3,679.93, 5,516.55 and 1,338.28

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Solution

The fourth proportional to 3,679.93, 5,516.55 and 1,338.28 is: 2,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.93 : 5,516.55 = 1,338.28 : x
  2. Step 2: Convert to fraction form
    3,679.93/5,516.55 = 1,338.28/x
  3. Step 3: Cross multiply
    3,679.93x = 5,516.55 × 1,338.28
  4. Step 4: Simplify right side
    3,679.93x = 7,382,674.74
  5. Step 5: Solve for x
    x = 7,382,674.74/3,679.93
  6. Step 6: Final answer
    x = 2,006.20

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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.