Home / 5,150.76-7,108.05-2,792.91

Finding the Fourth Proportional to 5,150.76, 7,108.05 and 2,792.91

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Solution

The fourth proportional to 5,150.76, 7,108.05 and 2,792.91 is: 3,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.76 : 7,108.05 = 2,792.91 : x
  2. Step 2: Convert to fraction form
    5,150.76/7,108.05 = 2,792.91/x
  3. Step 3: Cross multiply
    5,150.76x = 7,108.05 × 2,792.91
  4. Step 4: Simplify right side
    5,150.76x = 19,852,143.93
  5. Step 5: Solve for x
    x = 19,852,143.93/5,150.76
  6. Step 6: Final answer
    x = 3,854.22

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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.