Home / 3,182.59-4,393.80-2,120.07

Finding the Fourth Proportional to 3,182.59, 4,393.80 and 2,120.07

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Solution

The fourth proportional to 3,182.59, 4,393.80 and 2,120.07 is: 2,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.59 : 4,393.80 = 2,120.07 : x
  2. Step 2: Convert to fraction form
    3,182.59/4,393.80 = 2,120.07/x
  3. Step 3: Cross multiply
    3,182.59x = 4,393.80 × 2,120.07
  4. Step 4: Simplify right side
    3,182.59x = 9,315,163.57
  5. Step 5: Solve for x
    x = 9,315,163.57/3,182.59
  6. Step 6: Final answer
    x = 2,926.91

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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.