Home / 4,123.05-5,690.21-2,354.79

Finding the Fourth Proportional to 4,123.05, 5,690.21 and 2,354.79

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Solution

The fourth proportional to 4,123.05, 5,690.21 and 2,354.79 is: 3,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.05 : 5,690.21 = 2,354.79 : x
  2. Step 2: Convert to fraction form
    4,123.05/5,690.21 = 2,354.79/x
  3. Step 3: Cross multiply
    4,123.05x = 5,690.21 × 2,354.79
  4. Step 4: Simplify right side
    4,123.05x = 13,399,237.83
  5. Step 5: Solve for x
    x = 13,399,237.83/4,123.05
  6. Step 6: Final answer
    x = 3,249.84

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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.