Home / 1,568.40-2,350.64-1,372.96

Finding the Fourth Proportional to 1,568.40, 2,350.64 and 1,372.96

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Solution

The fourth proportional to 1,568.40, 2,350.64 and 1,372.96 is: 2,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.40 : 2,350.64 = 1,372.96 : x
  2. Step 2: Convert to fraction form
    1,568.40/2,350.64 = 1,372.96/x
  3. Step 3: Cross multiply
    1,568.40x = 2,350.64 × 1,372.96
  4. Step 4: Simplify right side
    1,568.40x = 3,227,334.69
  5. Step 5: Solve for x
    x = 3,227,334.69/1,568.40
  6. Step 6: Final answer
    x = 2,057.72

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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.