Home / 5,149.97-7,106.90-2,911.87

Finding the Fourth Proportional to 5,149.97, 7,106.90 and 2,911.87

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Solution

The fourth proportional to 5,149.97, 7,106.90 and 2,911.87 is: 4,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.97 : 7,106.90 = 2,911.87 : x
  2. Step 2: Convert to fraction form
    5,149.97/7,106.90 = 2,911.87/x
  3. Step 3: Cross multiply
    5,149.97x = 7,106.90 × 2,911.87
  4. Step 4: Simplify right side
    5,149.97x = 20,694,368.90
  5. Step 5: Solve for x
    x = 20,694,368.90/5,149.97
  6. Step 6: Final answer
    x = 4,018.35

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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.