Home / 3,568.48-5,355.84-1,378.74

Finding the Fourth Proportional to 3,568.48, 5,355.84 and 1,378.74

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Solution

The fourth proportional to 3,568.48, 5,355.84 and 1,378.74 is: 2,069.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.48 : 5,355.84 = 1,378.74 : x
  2. Step 2: Convert to fraction form
    3,568.48/5,355.84 = 1,378.74/x
  3. Step 3: Cross multiply
    3,568.48x = 5,355.84 × 1,378.74
  4. Step 4: Simplify right side
    3,568.48x = 7,384,310.84
  5. Step 5: Solve for x
    x = 7,384,310.84/3,568.48
  6. Step 6: Final answer
    x = 2,069.32

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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.