Home / 2,976.80-4,108.08-1,650.58

Finding the Fourth Proportional to 2,976.80, 4,108.08 and 1,650.58

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Solution

The fourth proportional to 2,976.80, 4,108.08 and 1,650.58 is: 2,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.80 : 4,108.08 = 1,650.58 : x
  2. Step 2: Convert to fraction form
    2,976.80/4,108.08 = 1,650.58/x
  3. Step 3: Cross multiply
    2,976.80x = 4,108.08 × 1,650.58
  4. Step 4: Simplify right side
    2,976.80x = 6,780,714.69
  5. Step 5: Solve for x
    x = 6,780,714.69/2,976.80
  6. Step 6: Final answer
    x = 2,277.85

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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.