Home / 5,538.51-8,311.40-2,617.11

Finding the Fourth Proportional to 5,538.51, 8,311.40 and 2,617.11

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Solution

The fourth proportional to 5,538.51, 8,311.40 and 2,617.11 is: 3,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.51 : 8,311.40 = 2,617.11 : x
  2. Step 2: Convert to fraction form
    5,538.51/8,311.40 = 2,617.11/x
  3. Step 3: Cross multiply
    5,538.51x = 8,311.40 × 2,617.11
  4. Step 4: Simplify right side
    5,538.51x = 21,751,848.05
  5. Step 5: Solve for x
    x = 21,751,848.05/5,538.51
  6. Step 6: Final answer
    x = 3,927.38

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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.