Home / 1,815.87-2,504.97-1,186.77

Finding the Fourth Proportional to 1,815.87, 2,504.97 and 1,186.77

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Solution

The fourth proportional to 1,815.87, 2,504.97 and 1,186.77 is: 1,637.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.87 : 2,504.97 = 1,186.77 : x
  2. Step 2: Convert to fraction form
    1,815.87/2,504.97 = 1,186.77/x
  3. Step 3: Cross multiply
    1,815.87x = 2,504.97 × 1,186.77
  4. Step 4: Simplify right side
    1,815.87x = 2,972,823.25
  5. Step 5: Solve for x
    x = 2,972,823.25/1,815.87
  6. Step 6: Final answer
    x = 1,637.13

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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.