Home / 2,663.66-3,991.98-2,045.36

Finding the Fourth Proportional to 2,663.66, 3,991.98 and 2,045.36

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Solution

The fourth proportional to 2,663.66, 3,991.98 and 2,045.36 is: 3,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.66 : 3,991.98 = 2,045.36 : x
  2. Step 2: Convert to fraction form
    2,663.66/3,991.98 = 2,045.36/x
  3. Step 3: Cross multiply
    2,663.66x = 3,991.98 × 2,045.36
  4. Step 4: Simplify right side
    2,663.66x = 8,165,036.21
  5. Step 5: Solve for x
    x = 8,165,036.21/2,663.66
  6. Step 6: Final answer
    x = 3,065.34

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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.