Home / 5,164.34-7,126.76-2,806.49

Finding the Fourth Proportional to 5,164.34, 7,126.76 and 2,806.49

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Solution

The fourth proportional to 5,164.34, 7,126.76 and 2,806.49 is: 3,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.34 : 7,126.76 = 2,806.49 : x
  2. Step 2: Convert to fraction form
    5,164.34/7,126.76 = 2,806.49/x
  3. Step 3: Cross multiply
    5,164.34x = 7,126.76 × 2,806.49
  4. Step 4: Simplify right side
    5,164.34x = 20,001,131.01
  5. Step 5: Solve for x
    x = 20,001,131.01/5,164.34
  6. Step 6: Final answer
    x = 3,872.93

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Half 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.