Home / 3,342.72-4,613.58-2,221.68

Finding the Fourth Proportional to 3,342.72, 4,613.58 and 2,221.68

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Solution

The fourth proportional to 3,342.72, 4,613.58 and 2,221.68 is: 3,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.72 : 4,613.58 = 2,221.68 : x
  2. Step 2: Convert to fraction form
    3,342.72/4,613.58 = 2,221.68/x
  3. Step 3: Cross multiply
    3,342.72x = 4,613.58 × 2,221.68
  4. Step 4: Simplify right side
    3,342.72x = 10,249,898.41
  5. Step 5: Solve for x
    x = 10,249,898.41/3,342.72
  6. Step 6: Final answer
    x = 3,066.33

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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.