Home / 5,388.91-7,436.65-3,031

Finding the Fourth Proportional to 5,388.91, 7,436.65 and 3,031

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Solution

The fourth proportional to 5,388.91, 7,436.65 and 3,031 is: 4,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.91 : 7,436.65 = 3,031 : x
  2. Step 2: Convert to fraction form
    5,388.91/7,436.65 = 3,031/x
  3. Step 3: Cross multiply
    5,388.91x = 7,436.65 × 3,031
  4. Step 4: Simplify right side
    5,388.91x = 22,540,486.15
  5. Step 5: Solve for x
    x = 22,540,486.15/5,388.91
  6. Step 6: Final answer
    x = 4,182.75

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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.