Home / 4,119.80-5,685.72-2,351.66

Finding the Fourth Proportional to 4,119.80, 5,685.72 and 2,351.66

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Solution

The fourth proportional to 4,119.80, 5,685.72 and 2,351.66 is: 3,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.80 : 5,685.72 = 2,351.66 : x
  2. Step 2: Convert to fraction form
    4,119.80/5,685.72 = 2,351.66/x
  3. Step 3: Cross multiply
    4,119.80x = 5,685.72 × 2,351.66
  4. Step 4: Simplify right side
    4,119.80x = 13,370,851.87
  5. Step 5: Solve for x
    x = 13,370,851.87/4,119.80
  6. Step 6: Final answer
    x = 3,245.51

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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.