Home / 1,781.31-2,458.21-1,193.25

Finding the Fourth Proportional to 1,781.31, 2,458.21 and 1,193.25

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Solution

The fourth proportional to 1,781.31, 2,458.21 and 1,193.25 is: 1,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.31 : 2,458.21 = 1,193.25 : x
  2. Step 2: Convert to fraction form
    1,781.31/2,458.21 = 1,193.25/x
  3. Step 3: Cross multiply
    1,781.31x = 2,458.21 × 1,193.25
  4. Step 4: Simplify right side
    1,781.31x = 2,933,259.08
  5. Step 5: Solve for x
    x = 2,933,259.08/1,781.31
  6. Step 6: Final answer
    x = 1,646.69

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1.5x scale

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.