Home / 1,046.25-1,569.78-388.53

Finding the Fourth Proportional to 1,046.25, 1,569.78 and 388.53

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Solution

The fourth proportional to 1,046.25, 1,569.78 and 388.53 is: 582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.25 : 1,569.78 = 388.53 : x
  2. Step 2: Convert to fraction form
    1,046.25/1,569.78 = 388.53/x
  3. Step 3: Cross multiply
    1,046.25x = 1,569.78 × 388.53
  4. Step 4: Simplify right side
    1,046.25x = 609,906.62
  5. Step 5: Solve for x
    x = 609,906.62/1,046.25
  6. Step 6: Final answer
    x = 582.95

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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.