Home / 3,243.42-4,474.36-2,123.86

Finding the Fourth Proportional to 3,243.42, 4,474.36 and 2,123.86

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Solution

The fourth proportional to 3,243.42, 4,474.36 and 2,123.86 is: 2,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.42 : 4,474.36 = 2,123.86 : x
  2. Step 2: Convert to fraction form
    3,243.42/4,474.36 = 2,123.86/x
  3. Step 3: Cross multiply
    3,243.42x = 4,474.36 × 2,123.86
  4. Step 4: Simplify right side
    3,243.42x = 9,502,914.23
  5. Step 5: Solve for x
    x = 9,502,914.23/3,243.42
  6. Step 6: Final answer
    x = 2,929.91

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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.