Home / 1,578.18-2,364.03-1,268.36

Finding the Fourth Proportional to 1,578.18, 2,364.03 and 1,268.36

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Solution

The fourth proportional to 1,578.18, 2,364.03 and 1,268.36 is: 1,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.18 : 2,364.03 = 1,268.36 : x
  2. Step 2: Convert to fraction form
    1,578.18/2,364.03 = 1,268.36/x
  3. Step 3: Cross multiply
    1,578.18x = 2,364.03 × 1,268.36
  4. Step 4: Simplify right side
    1,578.18x = 2,998,429.27
  5. Step 5: Solve for x
    x = 2,998,429.27/1,578.18
  6. Step 6: Final answer
    x = 1,899.93

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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.