Home / 5,160.83-7,121.97-2,802.96

Finding the Fourth Proportional to 5,160.83, 7,121.97 and 2,802.96

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Solution

The fourth proportional to 5,160.83, 7,121.97 and 2,802.96 is: 3,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.83 : 7,121.97 = 2,802.96 : x
  2. Step 2: Convert to fraction form
    5,160.83/7,121.97 = 2,802.96/x
  3. Step 3: Cross multiply
    5,160.83x = 7,121.97 × 2,802.96
  4. Step 4: Simplify right side
    5,160.83x = 19,962,597.03
  5. Step 5: Solve for x
    x = 19,962,597.03/5,160.83
  6. Step 6: Final answer
    x = 3,868.10

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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.