Home / 1,894.12-2,613.15-1,185.68

Finding the Fourth Proportional to 1,894.12, 2,613.15 and 1,185.68

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Solution

The fourth proportional to 1,894.12, 2,613.15 and 1,185.68 is: 1,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.12 : 2,613.15 = 1,185.68 : x
  2. Step 2: Convert to fraction form
    1,894.12/2,613.15 = 1,185.68/x
  3. Step 3: Cross multiply
    1,894.12x = 2,613.15 × 1,185.68
  4. Step 4: Simplify right side
    1,894.12x = 3,098,346.63
  5. Step 5: Solve for x
    x = 3,098,346.63/1,894.12
  6. Step 6: Final answer
    x = 1,635.77

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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.