Home / 2,403.11-3,605.87-1,105.49

Finding the Fourth Proportional to 2,403.11, 3,605.87 and 1,105.49

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Solution

The fourth proportional to 2,403.11, 3,605.87 and 1,105.49 is: 1,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.11 : 3,605.87 = 1,105.49 : x
  2. Step 2: Convert to fraction form
    2,403.11/3,605.87 = 1,105.49/x
  3. Step 3: Cross multiply
    2,403.11x = 3,605.87 × 1,105.49
  4. Step 4: Simplify right side
    2,403.11x = 3,986,253.23
  5. Step 5: Solve for x
    x = 3,986,253.23/2,403.11
  6. Step 6: Final answer
    x = 1,658.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.