Home / 1,682.22-2,319.90-1,091.76

Finding the Fourth Proportional to 1,682.22, 2,319.90 and 1,091.76

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Solution

The fourth proportional to 1,682.22, 2,319.90 and 1,091.76 is: 1,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.22 : 2,319.90 = 1,091.76 : x
  2. Step 2: Convert to fraction form
    1,682.22/2,319.90 = 1,091.76/x
  3. Step 3: Cross multiply
    1,682.22x = 2,319.90 × 1,091.76
  4. Step 4: Simplify right side
    1,682.22x = 2,532,774.02
  5. Step 5: Solve for x
    x = 2,532,774.02/1,682.22
  6. Step 6: Final answer
    x = 1,505.61

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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.