Home / 3,725.76-5,135.04-2,728.92

Finding the Fourth Proportional to 3,725.76, 5,135.04 and 2,728.92

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Solution

The fourth proportional to 3,725.76, 5,135.04 and 2,728.92 is: 3,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.76 : 5,135.04 = 2,728.92 : x
  2. Step 2: Convert to fraction form
    3,725.76/5,135.04 = 2,728.92/x
  3. Step 3: Cross multiply
    3,725.76x = 5,135.04 × 2,728.92
  4. Step 4: Simplify right side
    3,725.76x = 14,013,113.36
  5. Step 5: Solve for x
    x = 14,013,113.36/3,725.76
  6. Step 6: Final answer
    x = 3,761.14

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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.