Home / 5,210.87-7,190.73-2,972.93

Finding the Fourth Proportional to 5,210.87, 7,190.73 and 2,972.93

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Solution

The fourth proportional to 5,210.87, 7,190.73 and 2,972.93 is: 4,102.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.87 : 7,190.73 = 2,972.93 : x
  2. Step 2: Convert to fraction form
    5,210.87/7,190.73 = 2,972.93/x
  3. Step 3: Cross multiply
    5,210.87x = 7,190.73 × 2,972.93
  4. Step 4: Simplify right side
    5,210.87x = 21,377,500.99
  5. Step 5: Solve for x
    x = 21,377,500.99/5,210.87
  6. Step 6: Final answer
    x = 4,102.49

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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.