Home / 5,407.36-8,112.12-2,287.36

Finding the Fourth Proportional to 5,407.36, 8,112.12 and 2,287.36

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Solution

The fourth proportional to 5,407.36, 8,112.12 and 2,287.36 is: 3,431.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.36 : 8,112.12 = 2,287.36 : x
  2. Step 2: Convert to fraction form
    5,407.36/8,112.12 = 2,287.36/x
  3. Step 3: Cross multiply
    5,407.36x = 8,112.12 × 2,287.36
  4. Step 4: Simplify right side
    5,407.36x = 18,555,318.52
  5. Step 5: Solve for x
    x = 18,555,318.52/5,407.36
  6. Step 6: Final answer
    x = 3,431.49

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Half scale
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Double scale
Find fourth proportional to 5,408.36, 8,113.62 and 2,288.36
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.