Home / 1,781.69-2,458.57-1,035.64

Finding the Fourth Proportional to 1,781.69, 2,458.57 and 1,035.64

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Solution

The fourth proportional to 1,781.69, 2,458.57 and 1,035.64 is: 1,429.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.69 : 2,458.57 = 1,035.64 : x
  2. Step 2: Convert to fraction form
    1,781.69/2,458.57 = 1,035.64/x
  3. Step 3: Cross multiply
    1,781.69x = 2,458.57 × 1,035.64
  4. Step 4: Simplify right side
    1,781.69x = 2,546,193.43
  5. Step 5: Solve for x
    x = 2,546,193.43/1,781.69
  6. Step 6: Final answer
    x = 1,429.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.