Home / 1,821.24-2,732.10-1,308.60

Finding the Fourth Proportional to 1,821.24, 2,732.10 and 1,308.60

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Solution

The fourth proportional to 1,821.24, 2,732.10 and 1,308.60 is: 1,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.24 : 2,732.10 = 1,308.60 : x
  2. Step 2: Convert to fraction form
    1,821.24/2,732.10 = 1,308.60/x
  3. Step 3: Cross multiply
    1,821.24x = 2,732.10 × 1,308.60
  4. Step 4: Simplify right side
    1,821.24x = 3,575,226.06
  5. Step 5: Solve for x
    x = 3,575,226.06/1,821.24
  6. Step 6: Final answer
    x = 1,963.07

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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.