Home / 3,516.78-5,274.27-1,324.32

Finding the Fourth Proportional to 3,516.78, 5,274.27 and 1,324.32

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Solution

The fourth proportional to 3,516.78, 5,274.27 and 1,324.32 is: 1,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.78 : 5,274.27 = 1,324.32 : x
  2. Step 2: Convert to fraction form
    3,516.78/5,274.27 = 1,324.32/x
  3. Step 3: Cross multiply
    3,516.78x = 5,274.27 × 1,324.32
  4. Step 4: Simplify right side
    3,516.78x = 6,984,821.25
  5. Step 5: Solve for x
    x = 6,984,821.25/3,516.78
  6. Step 6: Final answer
    x = 1,986.14

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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.