Home / 3,100.97-4,277.42-2,038.86

Finding the Fourth Proportional to 3,100.97, 4,277.42 and 2,038.86

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Solution

The fourth proportional to 3,100.97, 4,277.42 and 2,038.86 is: 2,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.97 : 4,277.42 = 2,038.86 : x
  2. Step 2: Convert to fraction form
    3,100.97/4,277.42 = 2,038.86/x
  3. Step 3: Cross multiply
    3,100.97x = 4,277.42 × 2,038.86
  4. Step 4: Simplify right side
    3,100.97x = 8,721,069.46
  5. Step 5: Solve for x
    x = 8,721,069.46/3,100.97
  6. Step 6: Final answer
    x = 2,812.37

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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.