Home / 5,867.12-8,100.36-4,103.12

Finding the Fourth Proportional to 5,867.12, 8,100.36 and 4,103.12

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Solution

The fourth proportional to 5,867.12, 8,100.36 and 4,103.12 is: 5,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,867.12 : 8,100.36 = 4,103.12 : x
  2. Step 2: Convert to fraction form
    5,867.12/8,100.36 = 4,103.12/x
  3. Step 3: Cross multiply
    5,867.12x = 8,100.36 × 4,103.12
  4. Step 4: Simplify right side
    5,867.12x = 33,236,749.12
  5. Step 5: Solve for x
    x = 33,236,749.12/5,867.12
  6. Step 6: Final answer
    x = 5,664.92

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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.