Home / 2,335.92-3,223.40-1,287.98

Finding the Fourth Proportional to 2,335.92, 3,223.40 and 1,287.98

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Solution

The fourth proportional to 2,335.92, 3,223.40 and 1,287.98 is: 1,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.92 : 3,223.40 = 1,287.98 : x
  2. Step 2: Convert to fraction form
    2,335.92/3,223.40 = 1,287.98/x
  3. Step 3: Cross multiply
    2,335.92x = 3,223.40 × 1,287.98
  4. Step 4: Simplify right side
    2,335.92x = 4,151,674.73
  5. Step 5: Solve for x
    x = 4,151,674.73/2,335.92
  6. Step 6: Final answer
    x = 1,777.32

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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.