Home / 5,170.32-7,755.47-1,274.72

Finding the Fourth Proportional to 5,170.32, 7,755.47 and 1,274.72

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Solution

The fourth proportional to 5,170.32, 7,755.47 and 1,274.72 is: 1,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.32 : 7,755.47 = 1,274.72 : x
  2. Step 2: Convert to fraction form
    5,170.32/7,755.47 = 1,274.72/x
  3. Step 3: Cross multiply
    5,170.32x = 7,755.47 × 1,274.72
  4. Step 4: Simplify right side
    5,170.32x = 9,886,007.57
  5. Step 5: Solve for x
    x = 9,886,007.57/5,170.32
  6. Step 6: Final answer
    x = 1,912.07

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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.