Home / 5,164.07-7,126.46-2,806.21

Finding the Fourth Proportional to 5,164.07, 7,126.46 and 2,806.21

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Solution

The fourth proportional to 5,164.07, 7,126.46 and 2,806.21 is: 3,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.07 : 7,126.46 = 2,806.21 : x
  2. Step 2: Convert to fraction form
    5,164.07/7,126.46 = 2,806.21/x
  3. Step 3: Cross multiply
    5,164.07x = 7,126.46 × 2,806.21
  4. Step 4: Simplify right side
    5,164.07x = 19,998,343.32
  5. Step 5: Solve for x
    x = 19,998,343.32/5,164.07
  6. Step 6: Final answer
    x = 3,872.59

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Double scale
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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.