Home / 1,786.11-2,462.55-1,155.53

Finding the Fourth Proportional to 1,786.11, 2,462.55 and 1,155.53

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Solution

The fourth proportional to 1,786.11, 2,462.55 and 1,155.53 is: 1,593.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.11 : 2,462.55 = 1,155.53 : x
  2. Step 2: Convert to fraction form
    1,786.11/2,462.55 = 1,155.53/x
  3. Step 3: Cross multiply
    1,786.11x = 2,462.55 × 1,155.53
  4. Step 4: Simplify right side
    1,786.11x = 2,845,538.09
  5. Step 5: Solve for x
    x = 2,845,538.09/1,786.11
  6. Step 6: Final answer
    x = 1,593.15

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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.