Home / 4,123.85-5,690.86-2,235.43

Finding the Fourth Proportional to 4,123.85, 5,690.86 and 2,235.43

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Solution

The fourth proportional to 4,123.85, 5,690.86 and 2,235.43 is: 3,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.85 : 5,690.86 = 2,235.43 : x
  2. Step 2: Convert to fraction form
    4,123.85/5,690.86 = 2,235.43/x
  3. Step 3: Cross multiply
    4,123.85x = 5,690.86 × 2,235.43
  4. Step 4: Simplify right side
    4,123.85x = 12,721,507.99
  5. Step 5: Solve for x
    x = 12,721,507.99/4,123.85
  6. Step 6: Final answer
    x = 3,084.87

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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.