Home / 2,290.64-3,161.15-1,295.90

Finding the Fourth Proportional to 2,290.64, 3,161.15 and 1,295.90

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Solution

The fourth proportional to 2,290.64, 3,161.15 and 1,295.90 is: 1,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.64 : 3,161.15 = 1,295.90 : x
  2. Step 2: Convert to fraction form
    2,290.64/3,161.15 = 1,295.90/x
  3. Step 3: Cross multiply
    2,290.64x = 3,161.15 × 1,295.90
  4. Step 4: Simplify right side
    2,290.64x = 4,096,521.72
  5. Step 5: Solve for x
    x = 4,096,521.72/2,290.64
  6. Step 6: Final answer
    x = 1,788.37

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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.