Home / 3,380.39-5,070.59-1,188.61

Finding the Fourth Proportional to 3,380.39, 5,070.59 and 1,188.61

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Solution

The fourth proportional to 3,380.39, 5,070.59 and 1,188.61 is: 1,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.39 : 5,070.59 = 1,188.61 : x
  2. Step 2: Convert to fraction form
    3,380.39/5,070.59 = 1,188.61/x
  3. Step 3: Cross multiply
    3,380.39x = 5,070.59 × 1,188.61
  4. Step 4: Simplify right side
    3,380.39x = 6,026,951.01
  5. Step 5: Solve for x
    x = 6,026,951.01/3,380.39
  6. Step 6: Final answer
    x = 1,782.91

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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.