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Finding the Fourth Proportional to 2,309.58, 3,184.11 and 1,719.09

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Solution

The fourth proportional to 2,309.58, 3,184.11 and 1,719.09 is: 2,370.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.58 : 3,184.11 = 1,719.09 : x
  2. Step 2: Convert to fraction form
    2,309.58/3,184.11 = 1,719.09/x
  3. Step 3: Cross multiply
    2,309.58x = 3,184.11 × 1,719.09
  4. Step 4: Simplify right side
    2,309.58x = 5,473,771.66
  5. Step 5: Solve for x
    x = 5,473,771.66/2,309.58
  6. Step 6: Final answer
    x = 2,370.03

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1.5x scale

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.