Home / 1,913.26-2,862.64-1,133.68

Finding the Fourth Proportional to 1,913.26, 2,862.64 and 1,133.68

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Solution

The fourth proportional to 1,913.26, 2,862.64 and 1,133.68 is: 1,696.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.26 : 2,862.64 = 1,133.68 : x
  2. Step 2: Convert to fraction form
    1,913.26/2,862.64 = 1,133.68/x
  3. Step 3: Cross multiply
    1,913.26x = 2,862.64 × 1,133.68
  4. Step 4: Simplify right side
    1,913.26x = 3,245,317.72
  5. Step 5: Solve for x
    x = 3,245,317.72/1,913.26
  6. Step 6: Final answer
    x = 1,696.22

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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.