Home / 2,221.62-3,068.22-1,977.30

Finding the Fourth Proportional to 2,221.62, 3,068.22 and 1,977.30

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Solution

The fourth proportional to 2,221.62, 3,068.22 and 1,977.30 is: 2,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.62 : 3,068.22 = 1,977.30 : x
  2. Step 2: Convert to fraction form
    2,221.62/3,068.22 = 1,977.30/x
  3. Step 3: Cross multiply
    2,221.62x = 3,068.22 × 1,977.30
  4. Step 4: Simplify right side
    2,221.62x = 6,066,791.41
  5. Step 5: Solve for x
    x = 6,066,791.41/2,221.62
  6. Step 6: Final answer
    x = 2,730.80

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1.5x scale

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.