Home / 2,216.25-3,320.88-1,392.93

Finding the Fourth Proportional to 2,216.25, 3,320.88 and 1,392.93

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Solution

The fourth proportional to 2,216.25, 3,320.88 and 1,392.93 is: 2,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.25 : 3,320.88 = 1,392.93 : x
  2. Step 2: Convert to fraction form
    2,216.25/3,320.88 = 1,392.93/x
  3. Step 3: Cross multiply
    2,216.25x = 3,320.88 × 1,392.93
  4. Step 4: Simplify right side
    2,216.25x = 4,625,753.38
  5. Step 5: Solve for x
    x = 4,625,753.38/2,216.25
  6. Step 6: Final answer
    x = 2,087.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.