Home / 1,452.05-2,178.09-356.42

Finding the Fourth Proportional to 1,452.05, 2,178.09 and 356.42

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Solution

The fourth proportional to 1,452.05, 2,178.09 and 356.42 is: 534.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.05 : 2,178.09 = 356.42 : x
  2. Step 2: Convert to fraction form
    1,452.05/2,178.09 = 356.42/x
  3. Step 3: Cross multiply
    1,452.05x = 2,178.09 × 356.42
  4. Step 4: Simplify right side
    1,452.05x = 776,320.28
  5. Step 5: Solve for x
    x = 776,320.28/1,452.05
  6. Step 6: Final answer
    x = 534.64

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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.