Home / 5,031.45-6,945.89-3,144.08

Finding the Fourth Proportional to 5,031.45, 6,945.89 and 3,144.08

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Solution

The fourth proportional to 5,031.45, 6,945.89 and 3,144.08 is: 4,340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,031.45 : 6,945.89 = 3,144.08 : x
  2. Step 2: Convert to fraction form
    5,031.45/6,945.89 = 3,144.08/x
  3. Step 3: Cross multiply
    5,031.45x = 6,945.89 × 3,144.08
  4. Step 4: Simplify right side
    5,031.45x = 21,838,433.83
  5. Step 5: Solve for x
    x = 21,838,433.83/5,031.45
  6. Step 6: Final answer
    x = 4,340.39

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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.