Home / 1,913.66-2,643.26-1,727.09

Finding the Fourth Proportional to 1,913.66, 2,643.26 and 1,727.09

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Solution

The fourth proportional to 1,913.66, 2,643.26 and 1,727.09 is: 2,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.66 : 2,643.26 = 1,727.09 : x
  2. Step 2: Convert to fraction form
    1,913.66/2,643.26 = 1,727.09/x
  3. Step 3: Cross multiply
    1,913.66x = 2,643.26 × 1,727.09
  4. Step 4: Simplify right side
    1,913.66x = 4,565,147.91
  5. Step 5: Solve for x
    x = 4,565,147.91/1,913.66
  6. Step 6: Final answer
    x = 2,385.56

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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.