Home / 1,163.51-1,743.72-1,008.71

Finding the Fourth Proportional to 1,163.51, 1,743.72 and 1,008.71

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Solution

The fourth proportional to 1,163.51, 1,743.72 and 1,008.71 is: 1,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.51 : 1,743.72 = 1,008.71 : x
  2. Step 2: Convert to fraction form
    1,163.51/1,743.72 = 1,008.71/x
  3. Step 3: Cross multiply
    1,163.51x = 1,743.72 × 1,008.71
  4. Step 4: Simplify right side
    1,163.51x = 1,758,899.08
  5. Step 5: Solve for x
    x = 1,758,899.08/1,163.51
  6. Step 6: Final answer
    x = 1,511.72

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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.