Home / 5,138.98-7,092.36-3,149.08

Finding the Fourth Proportional to 5,138.98, 7,092.36 and 3,149.08

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Solution

The fourth proportional to 5,138.98, 7,092.36 and 3,149.08 is: 4,346.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.98 : 7,092.36 = 3,149.08 : x
  2. Step 2: Convert to fraction form
    5,138.98/7,092.36 = 3,149.08/x
  3. Step 3: Cross multiply
    5,138.98x = 7,092.36 × 3,149.08
  4. Step 4: Simplify right side
    5,138.98x = 22,334,409.03
  5. Step 5: Solve for x
    x = 22,334,409.03/5,138.98
  6. Step 6: Final answer
    x = 4,346.08

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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.