Home / 2,031.80-3,046.80-936.50

Finding the Fourth Proportional to 2,031.80, 3,046.80 and 936.50

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Solution

The fourth proportional to 2,031.80, 3,046.80 and 936.50 is: 1,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.80 : 3,046.80 = 936.50 : x
  2. Step 2: Convert to fraction form
    2,031.80/3,046.80 = 936.50/x
  3. Step 3: Cross multiply
    2,031.80x = 3,046.80 × 936.50
  4. Step 4: Simplify right side
    2,031.80x = 2,853,328.20
  5. Step 5: Solve for x
    x = 2,853,328.20/2,031.80
  6. Step 6: Final answer
    x = 1,404.34

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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.