Home / 1,346.09-2,017.39-1,086.21

Finding the Fourth Proportional to 1,346.09, 2,017.39 and 1,086.21

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Solution

The fourth proportional to 1,346.09, 2,017.39 and 1,086.21 is: 1,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.09 : 2,017.39 = 1,086.21 : x
  2. Step 2: Convert to fraction form
    1,346.09/2,017.39 = 1,086.21/x
  3. Step 3: Cross multiply
    1,346.09x = 2,017.39 × 1,086.21
  4. Step 4: Simplify right side
    1,346.09x = 2,191,309.19
  5. Step 5: Solve for x
    x = 2,191,309.19/1,346.09
  6. Step 6: Final answer
    x = 1,627.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.