Home / 3,182.91-4,393.93-2,122.45

Finding the Fourth Proportional to 3,182.91, 4,393.93 and 2,122.45

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Solution

The fourth proportional to 3,182.91, 4,393.93 and 2,122.45 is: 2,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.91 : 4,393.93 = 2,122.45 : x
  2. Step 2: Convert to fraction form
    3,182.91/4,393.93 = 2,122.45/x
  3. Step 3: Cross multiply
    3,182.91x = 4,393.93 × 2,122.45
  4. Step 4: Simplify right side
    3,182.91x = 9,325,896.73
  5. Step 5: Solve for x
    x = 9,325,896.73/3,182.91
  6. Step 6: Final answer
    x = 2,929.99

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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.