Home / 1,452.30-2,178.46-356.66

Finding the Fourth Proportional to 1,452.30, 2,178.46 and 356.66

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Solution

The fourth proportional to 1,452.30, 2,178.46 and 356.66 is: 534.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.30 : 2,178.46 = 356.66 : x
  2. Step 2: Convert to fraction form
    1,452.30/2,178.46 = 356.66/x
  3. Step 3: Cross multiply
    1,452.30x = 2,178.46 × 356.66
  4. Step 4: Simplify right side
    1,452.30x = 776,969.54
  5. Step 5: Solve for x
    x = 776,969.54/1,452.30
  6. Step 6: Final answer
    x = 534.99

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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.