Home / 3,487.42-5,231.81-1,236.16

Finding the Fourth Proportional to 3,487.42, 5,231.81 and 1,236.16

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Solution

The fourth proportional to 3,487.42, 5,231.81 and 1,236.16 is: 1,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.42 : 5,231.81 = 1,236.16 : x
  2. Step 2: Convert to fraction form
    3,487.42/5,231.81 = 1,236.16/x
  3. Step 3: Cross multiply
    3,487.42x = 5,231.81 × 1,236.16
  4. Step 4: Simplify right side
    3,487.42x = 6,467,354.25
  5. Step 5: Solve for x
    x = 6,467,354.25/3,487.42
  6. Step 6: Final answer
    x = 1,854.48

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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.