Home / 2,849.92-3,938.31-2,055.85

Finding the Fourth Proportional to 2,849.92, 3,938.31 and 2,055.85

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Solution

The fourth proportional to 2,849.92, 3,938.31 and 2,055.85 is: 2,840.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.92 : 3,938.31 = 2,055.85 : x
  2. Step 2: Convert to fraction form
    2,849.92/3,938.31 = 2,055.85/x
  3. Step 3: Cross multiply
    2,849.92x = 3,938.31 × 2,055.85
  4. Step 4: Simplify right side
    2,849.92x = 8,096,564.77
  5. Step 5: Solve for x
    x = 8,096,564.77/2,849.92
  6. Step 6: Final answer
    x = 2,840.98

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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.