Home / 5,486.90-8,238.38-3,149.51

Finding the Fourth Proportional to 5,486.90, 8,238.38 and 3,149.51

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Solution

The fourth proportional to 5,486.90, 8,238.38 and 3,149.51 is: 4,728.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.90 : 8,238.38 = 3,149.51 : x
  2. Step 2: Convert to fraction form
    5,486.90/8,238.38 = 3,149.51/x
  3. Step 3: Cross multiply
    5,486.90x = 8,238.38 × 3,149.51
  4. Step 4: Simplify right side
    5,486.90x = 25,946,803.25
  5. Step 5: Solve for x
    x = 25,946,803.25/5,486.90
  6. Step 6: Final answer
    x = 4,728.87

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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.