Home / 5,407.36-8,105.52-2,487.84

Finding the Fourth Proportional to 5,407.36, 8,105.52 and 2,487.84

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Solution

The fourth proportional to 5,407.36, 8,105.52 and 2,487.84 is: 3,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.36 : 8,105.52 = 2,487.84 : x
  2. Step 2: Convert to fraction form
    5,407.36/8,105.52 = 2,487.84/x
  3. Step 3: Cross multiply
    5,407.36x = 8,105.52 × 2,487.84
  4. Step 4: Simplify right side
    5,407.36x = 20,165,236.88
  5. Step 5: Solve for x
    x = 20,165,236.88/5,407.36
  6. Step 6: Final answer
    x = 3,729.22

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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.