Home / 3,709.65-5,119.35-2,031.09

Finding the Fourth Proportional to 3,709.65, 5,119.35 and 2,031.09

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Solution

The fourth proportional to 3,709.65, 5,119.35 and 2,031.09 is: 2,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.65 : 5,119.35 = 2,031.09 : x
  2. Step 2: Convert to fraction form
    3,709.65/5,119.35 = 2,031.09/x
  3. Step 3: Cross multiply
    3,709.65x = 5,119.35 × 2,031.09
  4. Step 4: Simplify right side
    3,709.65x = 10,397,860.59
  5. Step 5: Solve for x
    x = 10,397,860.59/3,709.65
  6. Step 6: Final answer
    x = 2,802.92

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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.