Home / 1,535.88-2,116.98-1,161.12

Finding the Fourth Proportional to 1,535.88, 2,116.98 and 1,161.12

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Solution

The fourth proportional to 1,535.88, 2,116.98 and 1,161.12 is: 1,600.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.88 : 2,116.98 = 1,161.12 : x
  2. Step 2: Convert to fraction form
    1,535.88/2,116.98 = 1,161.12/x
  3. Step 3: Cross multiply
    1,535.88x = 2,116.98 × 1,161.12
  4. Step 4: Simplify right side
    1,535.88x = 2,458,067.82
  5. Step 5: Solve for x
    x = 2,458,067.82/1,535.88
  6. Step 6: Final answer
    x = 1,600.43

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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.