Home / 3,001.84-4,142.30-1,939.66

Finding the Fourth Proportional to 3,001.84, 4,142.30 and 1,939.66

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Solution

The fourth proportional to 3,001.84, 4,142.30 and 1,939.66 is: 2,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.84 : 4,142.30 = 1,939.66 : x
  2. Step 2: Convert to fraction form
    3,001.84/4,142.30 = 1,939.66/x
  3. Step 3: Cross multiply
    3,001.84x = 4,142.30 × 1,939.66
  4. Step 4: Simplify right side
    3,001.84x = 8,034,653.62
  5. Step 5: Solve for x
    x = 8,034,653.62/3,001.84
  6. Step 6: Final answer
    x = 2,676.58

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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.