Home / 1,578.48-2,182.68-1,359.60

Finding the Fourth Proportional to 1,578.48, 2,182.68 and 1,359.60

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Solution

The fourth proportional to 1,578.48, 2,182.68 and 1,359.60 is: 1,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.48 : 2,182.68 = 1,359.60 : x
  2. Step 2: Convert to fraction form
    1,578.48/2,182.68 = 1,359.60/x
  3. Step 3: Cross multiply
    1,578.48x = 2,182.68 × 1,359.60
  4. Step 4: Simplify right side
    1,578.48x = 2,967,571.73
  5. Step 5: Solve for x
    x = 2,967,571.73/1,578.48
  6. Step 6: Final answer
    x = 1,880.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.