Home / 1,568.80-2,349.36-1,054.24

Finding the Fourth Proportional to 1,568.80, 2,349.36 and 1,054.24

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Solution

The fourth proportional to 1,568.80, 2,349.36 and 1,054.24 is: 1,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.80 : 2,349.36 = 1,054.24 : x
  2. Step 2: Convert to fraction form
    1,568.80/2,349.36 = 1,054.24/x
  3. Step 3: Cross multiply
    1,568.80x = 2,349.36 × 1,054.24
  4. Step 4: Simplify right side
    1,568.80x = 2,476,789.29
  5. Step 5: Solve for x
    x = 2,476,789.29/1,568.80
  6. Step 6: Final answer
    x = 1,578.78

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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.