Home / 5,091.20-7,025.79-2,853.06

Finding the Fourth Proportional to 5,091.20, 7,025.79 and 2,853.06

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Solution

The fourth proportional to 5,091.20, 7,025.79 and 2,853.06 is: 3,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.20 : 7,025.79 = 2,853.06 : x
  2. Step 2: Convert to fraction form
    5,091.20/7,025.79 = 2,853.06/x
  3. Step 3: Cross multiply
    5,091.20x = 7,025.79 × 2,853.06
  4. Step 4: Simplify right side
    5,091.20x = 20,044,986.15
  5. Step 5: Solve for x
    x = 20,044,986.15/5,091.20
  6. Step 6: Final answer
    x = 3,937.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.