Home / 1,820.30-2,727.21-844.70

Finding the Fourth Proportional to 1,820.30, 2,727.21 and 844.70

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Solution

The fourth proportional to 1,820.30, 2,727.21 and 844.70 is: 1,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.30 : 2,727.21 = 844.70 : x
  2. Step 2: Convert to fraction form
    1,820.30/2,727.21 = 844.70/x
  3. Step 3: Cross multiply
    1,820.30x = 2,727.21 × 844.70
  4. Step 4: Simplify right side
    1,820.30x = 2,303,674.29
  5. Step 5: Solve for x
    x = 2,303,674.29/1,820.30
  6. Step 6: Final answer
    x = 1,265.55

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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.