Home / 1,909.17-2,635.07-1,163.37

Finding the Fourth Proportional to 1,909.17, 2,635.07 and 1,163.37

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Solution

The fourth proportional to 1,909.17, 2,635.07 and 1,163.37 is: 1,605.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.17 : 2,635.07 = 1,163.37 : x
  2. Step 2: Convert to fraction form
    1,909.17/2,635.07 = 1,163.37/x
  3. Step 3: Cross multiply
    1,909.17x = 2,635.07 × 1,163.37
  4. Step 4: Simplify right side
    1,909.17x = 3,065,561.39
  5. Step 5: Solve for x
    x = 3,065,561.39/1,909.17
  6. Step 6: Final answer
    x = 1,605.70

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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.