Home / 2,335.44-3,222.72-1,287.36

Finding the Fourth Proportional to 2,335.44, 3,222.72 and 1,287.36

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Solution

The fourth proportional to 2,335.44, 3,222.72 and 1,287.36 is: 1,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.44 : 3,222.72 = 1,287.36 : x
  2. Step 2: Convert to fraction form
    2,335.44/3,222.72 = 1,287.36/x
  3. Step 3: Cross multiply
    2,335.44x = 3,222.72 × 1,287.36
  4. Step 4: Simplify right side
    2,335.44x = 4,148,800.82
  5. Step 5: Solve for x
    x = 4,148,800.82/2,335.44
  6. Step 6: Final answer
    x = 1,776.45

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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.