Home / 3,516.32-5,274.12-918.92

Finding the Fourth Proportional to 3,516.32, 5,274.12 and 918.92

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Solution

The fourth proportional to 3,516.32, 5,274.12 and 918.92 is: 1,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,516.32 : 5,274.12 = 918.92 : x
  2. Step 2: Convert to fraction form
    3,516.32/5,274.12 = 918.92/x
  3. Step 3: Cross multiply
    3,516.32x = 5,274.12 × 918.92
  4. Step 4: Simplify right side
    3,516.32x = 4,846,494.35
  5. Step 5: Solve for x
    x = 4,846,494.35/3,516.32
  6. Step 6: Final answer
    x = 1,378.29

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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.