Home / 2,335.41-3,222.75-1,287.51

Finding the Fourth Proportional to 2,335.41, 3,222.75 and 1,287.51

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Solution

The fourth proportional to 2,335.41, 3,222.75 and 1,287.51 is: 1,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.41 : 3,222.75 = 1,287.51 : x
  2. Step 2: Convert to fraction form
    2,335.41/3,222.75 = 1,287.51/x
  3. Step 3: Cross multiply
    2,335.41x = 3,222.75 × 1,287.51
  4. Step 4: Simplify right side
    2,335.41x = 4,149,322.85
  5. Step 5: Solve for x
    x = 4,149,322.85/2,335.41
  6. Step 6: Final answer
    x = 1,776.70

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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.