Home / 5,164.05-7,126.31-2,806.23

Finding the Fourth Proportional to 5,164.05, 7,126.31 and 2,806.23

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Solution

The fourth proportional to 5,164.05, 7,126.31 and 2,806.23 is: 3,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.05 : 7,126.31 = 2,806.23 : x
  2. Step 2: Convert to fraction form
    5,164.05/7,126.31 = 2,806.23/x
  3. Step 3: Cross multiply
    5,164.05x = 7,126.31 × 2,806.23
  4. Step 4: Simplify right side
    5,164.05x = 19,998,050.88
  5. Step 5: Solve for x
    x = 19,998,050.88/5,164.05
  6. Step 6: Final answer
    x = 3,872.55

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Half scale
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Double scale
Find fourth proportional to 5,165.05, 7,127.68 and 2,807.23
Similar ratio
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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.