Home / 3,100.89-4,277.43-2,038.85

Finding the Fourth Proportional to 3,100.89, 4,277.43 and 2,038.85

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Solution

The fourth proportional to 3,100.89, 4,277.43 and 2,038.85 is: 2,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.89 : 4,277.43 = 2,038.85 : x
  2. Step 2: Convert to fraction form
    3,100.89/4,277.43 = 2,038.85/x
  3. Step 3: Cross multiply
    3,100.89x = 4,277.43 × 2,038.85
  4. Step 4: Simplify right side
    3,100.89x = 8,721,016.77
  5. Step 5: Solve for x
    x = 8,721,016.77/3,100.89
  6. Step 6: Final answer
    x = 2,812.42

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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.