Home / 1,216.38-1,821.60-567.30

Finding the Fourth Proportional to 1,216.38, 1,821.60 and 567.30

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Solution

The fourth proportional to 1,216.38, 1,821.60 and 567.30 is: 849.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.38 : 1,821.60 = 567.30 : x
  2. Step 2: Convert to fraction form
    1,216.38/1,821.60 = 567.30/x
  3. Step 3: Cross multiply
    1,216.38x = 1,821.60 × 567.30
  4. Step 4: Simplify right side
    1,216.38x = 1,033,393.68
  5. Step 5: Solve for x
    x = 1,033,393.68/1,216.38
  6. Step 6: Final answer
    x = 849.56

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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.