Home / 3,342.78-4,613.10-1,945.56

Finding the Fourth Proportional to 3,342.78, 4,613.10 and 1,945.56

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Solution

The fourth proportional to 3,342.78, 4,613.10 and 1,945.56 is: 2,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.78 : 4,613.10 = 1,945.56 : x
  2. Step 2: Convert to fraction form
    3,342.78/4,613.10 = 1,945.56/x
  3. Step 3: Cross multiply
    3,342.78x = 4,613.10 × 1,945.56
  4. Step 4: Simplify right side
    3,342.78x = 8,975,062.84
  5. Step 5: Solve for x
    x = 8,975,062.84/3,342.78
  6. Step 6: Final answer
    x = 2,684.91

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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.