Home / 2,291.22-3,161.70-1,505.52

Finding the Fourth Proportional to 2,291.22, 3,161.70 and 1,505.52

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Solution

The fourth proportional to 2,291.22, 3,161.70 and 1,505.52 is: 2,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.22 : 3,161.70 = 1,505.52 : x
  2. Step 2: Convert to fraction form
    2,291.22/3,161.70 = 1,505.52/x
  3. Step 3: Cross multiply
    2,291.22x = 3,161.70 × 1,505.52
  4. Step 4: Simplify right side
    2,291.22x = 4,760,002.58
  5. Step 5: Solve for x
    x = 4,760,002.58/2,291.22
  6. Step 6: Final answer
    x = 2,077.50

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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.