Home / 5,210.96-7,190.76-2,972.92

Finding the Fourth Proportional to 5,210.96, 7,190.76 and 2,972.92

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Solution

The fourth proportional to 5,210.96, 7,190.76 and 2,972.92 is: 4,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.96 : 7,190.76 = 2,972.92 : x
  2. Step 2: Convert to fraction form
    5,210.96/7,190.76 = 2,972.92/x
  3. Step 3: Cross multiply
    5,210.96x = 7,190.76 × 2,972.92
  4. Step 4: Simplify right side
    5,210.96x = 21,377,554.22
  5. Step 5: Solve for x
    x = 21,377,554.22/5,210.96
  6. Step 6: Final answer
    x = 4,102.42

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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.