Home / 3,568.19-5,353.81-1,378.46

Finding the Fourth Proportional to 3,568.19, 5,353.81 and 1,378.46

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Solution

The fourth proportional to 3,568.19, 5,353.81 and 1,378.46 is: 2,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,568.19 : 5,353.81 = 1,378.46 : x
  2. Step 2: Convert to fraction form
    3,568.19/5,353.81 = 1,378.46/x
  3. Step 3: Cross multiply
    3,568.19x = 5,353.81 × 1,378.46
  4. Step 4: Simplify right side
    3,568.19x = 7,380,022.87
  5. Step 5: Solve for x
    x = 7,380,022.87/3,568.19
  6. Step 6: Final answer
    x = 2,068.28

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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.