Home / 5,181.11-7,147.78-3,610.11

Finding the Fourth Proportional to 5,181.11, 7,147.78 and 3,610.11

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Solution

The fourth proportional to 5,181.11, 7,147.78 and 3,610.11 is: 4,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.11 : 7,147.78 = 3,610.11 : x
  2. Step 2: Convert to fraction form
    5,181.11/7,147.78 = 3,610.11/x
  3. Step 3: Cross multiply
    5,181.11x = 7,147.78 × 3,610.11
  4. Step 4: Simplify right side
    5,181.11x = 25,804,272.06
  5. Step 5: Solve for x
    x = 25,804,272.06/5,181.11
  6. Step 6: Final answer
    x = 4,980.45

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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.