Home / 5,164.39-7,126.77-2,806.48

Finding the Fourth Proportional to 5,164.39, 7,126.77 and 2,806.48

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Solution

The fourth proportional to 5,164.39, 7,126.77 and 2,806.48 is: 3,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.39 : 7,126.77 = 2,806.48 : x
  2. Step 2: Convert to fraction form
    5,164.39/7,126.77 = 2,806.48/x
  3. Step 3: Cross multiply
    5,164.39x = 7,126.77 × 2,806.48
  4. Step 4: Simplify right side
    5,164.39x = 20,001,137.47
  5. Step 5: Solve for x
    x = 20,001,137.47/5,164.39
  6. Step 6: Final answer
    x = 3,872.89

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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.