Home / 2,669.30-4,001.78-1,110.47

Finding the Fourth Proportional to 2,669.30, 4,001.78 and 1,110.47

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Solution

The fourth proportional to 2,669.30, 4,001.78 and 1,110.47 is: 1,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.30 : 4,001.78 = 1,110.47 : x
  2. Step 2: Convert to fraction form
    2,669.30/4,001.78 = 1,110.47/x
  3. Step 3: Cross multiply
    2,669.30x = 4,001.78 × 1,110.47
  4. Step 4: Simplify right side
    2,669.30x = 4,443,836.63
  5. Step 5: Solve for x
    x = 4,443,836.63/2,669.30
  6. Step 6: Final answer
    x = 1,664.80

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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.