Home / 4,972.13-7,457.81-2,198.90

Finding the Fourth Proportional to 4,972.13, 7,457.81 and 2,198.90

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Solution

The fourth proportional to 4,972.13, 7,457.81 and 2,198.90 is: 3,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.13 : 7,457.81 = 2,198.90 : x
  2. Step 2: Convert to fraction form
    4,972.13/7,457.81 = 2,198.90/x
  3. Step 3: Cross multiply
    4,972.13x = 7,457.81 × 2,198.90
  4. Step 4: Simplify right side
    4,972.13x = 16,398,935.62
  5. Step 5: Solve for x
    x = 16,398,935.62/4,972.13
  6. Step 6: Final answer
    x = 3,298.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.