Home / 1,821.30-2,727.90-1,473.81

Finding the Fourth Proportional to 1,821.30, 2,727.90 and 1,473.81

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Solution

The fourth proportional to 1,821.30, 2,727.90 and 1,473.81 is: 2,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.30 : 2,727.90 = 1,473.81 : x
  2. Step 2: Convert to fraction form
    1,821.30/2,727.90 = 1,473.81/x
  3. Step 3: Cross multiply
    1,821.30x = 2,727.90 × 1,473.81
  4. Step 4: Simplify right side
    1,821.30x = 4,020,406.30
  5. Step 5: Solve for x
    x = 4,020,406.30/1,821.30
  6. Step 6: Final answer
    x = 2,207.44

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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.