Home / 3,859.23-5,326.20-2,180.70

Finding the Fourth Proportional to 3,859.23, 5,326.20 and 2,180.70

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Solution

The fourth proportional to 3,859.23, 5,326.20 and 2,180.70 is: 3,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.23 : 5,326.20 = 2,180.70 : x
  2. Step 2: Convert to fraction form
    3,859.23/5,326.20 = 2,180.70/x
  3. Step 3: Cross multiply
    3,859.23x = 5,326.20 × 2,180.70
  4. Step 4: Simplify right side
    3,859.23x = 11,614,844.34
  5. Step 5: Solve for x
    x = 11,614,844.34/3,859.23
  6. Step 6: Final answer
    x = 3,009.63

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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.