Home / 2,922.86-4,385.25-2,100.44

Finding the Fourth Proportional to 2,922.86, 4,385.25 and 2,100.44

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Solution

The fourth proportional to 2,922.86, 4,385.25 and 2,100.44 is: 3,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.86 : 4,385.25 = 2,100.44 : x
  2. Step 2: Convert to fraction form
    2,922.86/4,385.25 = 2,100.44/x
  3. Step 3: Cross multiply
    2,922.86x = 4,385.25 × 2,100.44
  4. Step 4: Simplify right side
    2,922.86x = 9,210,965.47
  5. Step 5: Solve for x
    x = 9,210,965.47/2,922.86
  6. Step 6: Final answer
    x = 3,151.35

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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.