Home / 5,170.19-7,755.36-1,274.60

Finding the Fourth Proportional to 5,170.19, 7,755.36 and 1,274.60

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Solution

The fourth proportional to 5,170.19, 7,755.36 and 1,274.60 is: 1,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.19 : 7,755.36 = 1,274.60 : x
  2. Step 2: Convert to fraction form
    5,170.19/7,755.36 = 1,274.60/x
  3. Step 3: Cross multiply
    5,170.19x = 7,755.36 × 1,274.60
  4. Step 4: Simplify right side
    5,170.19x = 9,884,943.08
  5. Step 5: Solve for x
    x = 9,884,943.08/5,170.19
  6. Step 6: Final answer
    x = 1,911.91

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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.