Home / 1,741.27-2,618.53-1,390.66

Finding the Fourth Proportional to 1,741.27, 2,618.53 and 1,390.66

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Solution

The fourth proportional to 1,741.27, 2,618.53 and 1,390.66 is: 2,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.27 : 2,618.53 = 1,390.66 : x
  2. Step 2: Convert to fraction form
    1,741.27/2,618.53 = 1,390.66/x
  3. Step 3: Cross multiply
    1,741.27x = 2,618.53 × 1,390.66
  4. Step 4: Simplify right side
    1,741.27x = 3,641,468.36
  5. Step 5: Solve for x
    x = 3,641,468.36/1,741.27
  6. Step 6: Final answer
    x = 2,091.28

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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.