Home / 2,335.18-3,222.57-1,287.28

Finding the Fourth Proportional to 2,335.18, 3,222.57 and 1,287.28

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Solution

The fourth proportional to 2,335.18, 3,222.57 and 1,287.28 is: 1,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.18 : 3,222.57 = 1,287.28 : x
  2. Step 2: Convert to fraction form
    2,335.18/3,222.57 = 1,287.28/x
  3. Step 3: Cross multiply
    2,335.18x = 3,222.57 × 1,287.28
  4. Step 4: Simplify right side
    2,335.18x = 4,148,349.91
  5. Step 5: Solve for x
    x = 4,148,349.91/2,335.18
  6. Step 6: Final answer
    x = 1,776.46

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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.