Home / 2,291.10-3,161.73-1,296.36

Finding the Fourth Proportional to 2,291.10, 3,161.73 and 1,296.36

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Solution

The fourth proportional to 2,291.10, 3,161.73 and 1,296.36 is: 1,788.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.10 : 3,161.73 = 1,296.36 : x
  2. Step 2: Convert to fraction form
    2,291.10/3,161.73 = 1,296.36/x
  3. Step 3: Cross multiply
    2,291.10x = 3,161.73 × 1,296.36
  4. Step 4: Simplify right side
    2,291.10x = 4,098,740.30
  5. Step 5: Solve for x
    x = 4,098,740.30/2,291.10
  6. Step 6: Final answer
    x = 1,788.98

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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.