Home / 2,351.23-3,244.66-1,288.98

Finding the Fourth Proportional to 2,351.23, 3,244.66 and 1,288.98

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Solution

The fourth proportional to 2,351.23, 3,244.66 and 1,288.98 is: 1,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.23 : 3,244.66 = 1,288.98 : x
  2. Step 2: Convert to fraction form
    2,351.23/3,244.66 = 1,288.98/x
  3. Step 3: Cross multiply
    2,351.23x = 3,244.66 × 1,288.98
  4. Step 4: Simplify right side
    2,351.23x = 4,182,298.62
  5. Step 5: Solve for x
    x = 4,182,298.62/2,351.23
  6. Step 6: Final answer
    x = 1,778.77

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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.