Home / 5,538.92-7,643.70-3,181.14

Finding the Fourth Proportional to 5,538.92, 7,643.70 and 3,181.14

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Solution

The fourth proportional to 5,538.92, 7,643.70 and 3,181.14 is: 4,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.92 : 7,643.70 = 3,181.14 : x
  2. Step 2: Convert to fraction form
    5,538.92/7,643.70 = 3,181.14/x
  3. Step 3: Cross multiply
    5,538.92x = 7,643.70 × 3,181.14
  4. Step 4: Simplify right side
    5,538.92x = 24,315,679.82
  5. Step 5: Solve for x
    x = 24,315,679.82/5,538.92
  6. Step 6: Final answer
    x = 4,389.97

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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.