Home / 1,357.22-1,876.38-1,193.18

Finding the Fourth Proportional to 1,357.22, 1,876.38 and 1,193.18

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Solution

The fourth proportional to 1,357.22, 1,876.38 and 1,193.18 is: 1,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.22 : 1,876.38 = 1,193.18 : x
  2. Step 2: Convert to fraction form
    1,357.22/1,876.38 = 1,193.18/x
  3. Step 3: Cross multiply
    1,357.22x = 1,876.38 × 1,193.18
  4. Step 4: Simplify right side
    1,357.22x = 2,238,859.09
  5. Step 5: Solve for x
    x = 2,238,859.09/1,357.22
  6. Step 6: Final answer
    x = 1,649.59

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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.