Home / 3,709.85-5,119.58-2,031.26

Finding the Fourth Proportional to 3,709.85, 5,119.58 and 2,031.26

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Solution

The fourth proportional to 3,709.85, 5,119.58 and 2,031.26 is: 2,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.85 : 5,119.58 = 2,031.26 : x
  2. Step 2: Convert to fraction form
    3,709.85/5,119.58 = 2,031.26/x
  3. Step 3: Cross multiply
    3,709.85x = 5,119.58 × 2,031.26
  4. Step 4: Simplify right side
    3,709.85x = 10,399,177.55
  5. Step 5: Solve for x
    x = 10,399,177.55/3,709.85
  6. Step 6: Final answer
    x = 2,803.13

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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.