Home / 5,210.97-7,191.83-2,972.33

Finding the Fourth Proportional to 5,210.97, 7,191.83 and 2,972.33

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Solution

The fourth proportional to 5,210.97, 7,191.83 and 2,972.33 is: 4,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.97 : 7,191.83 = 2,972.33 : x
  2. Step 2: Convert to fraction form
    5,210.97/7,191.83 = 2,972.33/x
  3. Step 3: Cross multiply
    5,210.97x = 7,191.83 × 2,972.33
  4. Step 4: Simplify right side
    5,210.97x = 21,376,477.20
  5. Step 5: Solve for x
    x = 21,376,477.20/5,210.97
  6. Step 6: Final answer
    x = 4,102.21

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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.