Home / 1,815.96-2,504.50-1,186.59

Finding the Fourth Proportional to 1,815.96, 2,504.50 and 1,186.59

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Solution

The fourth proportional to 1,815.96, 2,504.50 and 1,186.59 is: 1,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.96 : 2,504.50 = 1,186.59 : x
  2. Step 2: Convert to fraction form
    1,815.96/2,504.50 = 1,186.59/x
  3. Step 3: Cross multiply
    1,815.96x = 2,504.50 × 1,186.59
  4. Step 4: Simplify right side
    1,815.96x = 2,971,814.66
  5. Step 5: Solve for x
    x = 2,971,814.66/1,815.96
  6. Step 6: Final answer
    x = 1,636.50

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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.