Home / 1,761.35-2,643.32-836.91

Finding the Fourth Proportional to 1,761.35, 2,643.32 and 836.91

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Solution

The fourth proportional to 1,761.35, 2,643.32 and 836.91 is: 1,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.35 : 2,643.32 = 836.91 : x
  2. Step 2: Convert to fraction form
    1,761.35/2,643.32 = 836.91/x
  3. Step 3: Cross multiply
    1,761.35x = 2,643.32 × 836.91
  4. Step 4: Simplify right side
    1,761.35x = 2,212,216.76
  5. Step 5: Solve for x
    x = 2,212,216.76/1,761.35
  6. Step 6: Final answer
    x = 1,255.98

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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.