Home / 5,405.82-8,108.78-4,673.22

Finding the Fourth Proportional to 5,405.82, 8,108.78 and 4,673.22

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Solution

The fourth proportional to 5,405.82, 8,108.78 and 4,673.22 is: 7,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.82 : 8,108.78 = 4,673.22 : x
  2. Step 2: Convert to fraction form
    5,405.82/8,108.78 = 4,673.22/x
  3. Step 3: Cross multiply
    5,405.82x = 8,108.78 × 4,673.22
  4. Step 4: Simplify right side
    5,405.82x = 37,894,089.51
  5. Step 5: Solve for x
    x = 37,894,089.51/5,405.82
  6. Step 6: Final answer
    x = 7,009.87

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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.