Home / 3,400.63-4,693.86-2,221.87

Finding the Fourth Proportional to 3,400.63, 4,693.86 and 2,221.87

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Solution

The fourth proportional to 3,400.63, 4,693.86 and 2,221.87 is: 3,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.63 : 4,693.86 = 2,221.87 : x
  2. Step 2: Convert to fraction form
    3,400.63/4,693.86 = 2,221.87/x
  3. Step 3: Cross multiply
    3,400.63x = 4,693.86 × 2,221.87
  4. Step 4: Simplify right side
    3,400.63x = 10,429,146.72
  5. Step 5: Solve for x
    x = 10,429,146.72/3,400.63
  6. Step 6: Final answer
    x = 3,066.83

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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.