Home / 4,123.96-5,688.21-2,551.12

Finding the Fourth Proportional to 4,123.96, 5,688.21 and 2,551.12

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Solution

The fourth proportional to 4,123.96, 5,688.21 and 2,551.12 is: 3,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.96 : 5,688.21 = 2,551.12 : x
  2. Step 2: Convert to fraction form
    4,123.96/5,688.21 = 2,551.12/x
  3. Step 3: Cross multiply
    4,123.96x = 5,688.21 × 2,551.12
  4. Step 4: Simplify right side
    4,123.96x = 14,511,306.30
  5. Step 5: Solve for x
    x = 14,511,306.30/4,123.96
  6. Step 6: Final answer
    x = 3,518.78

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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.