Home / 2,693.40-4,039.56-961.89

Finding the Fourth Proportional to 2,693.40, 4,039.56 and 961.89

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Solution

The fourth proportional to 2,693.40, 4,039.56 and 961.89 is: 1,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.40 : 4,039.56 = 961.89 : x
  2. Step 2: Convert to fraction form
    2,693.40/4,039.56 = 961.89/x
  3. Step 3: Cross multiply
    2,693.40x = 4,039.56 × 961.89
  4. Step 4: Simplify right side
    2,693.40x = 3,885,612.37
  5. Step 5: Solve for x
    x = 3,885,612.37/2,693.40
  6. Step 6: Final answer
    x = 1,442.64

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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.