Home / 1,894.19-2,613.75-1,086.60

Finding the Fourth Proportional to 1,894.19, 2,613.75 and 1,086.60

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Solution

The fourth proportional to 1,894.19, 2,613.75 and 1,086.60 is: 1,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.19 : 2,613.75 = 1,086.60 : x
  2. Step 2: Convert to fraction form
    1,894.19/2,613.75 = 1,086.60/x
  3. Step 3: Cross multiply
    1,894.19x = 2,613.75 × 1,086.60
  4. Step 4: Simplify right side
    1,894.19x = 2,840,091.38
  5. Step 5: Solve for x
    x = 2,840,091.38/1,894.19
  6. Step 6: Final answer
    x = 1,499.37

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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.