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Finding the Fourth Proportional to 2,709.57, 3,739.19 and 1,530.62

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Solution

The fourth proportional to 2,709.57, 3,739.19 and 1,530.62 is: 2,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,709.57 : 3,739.19 = 1,530.62 : x
  2. Step 2: Convert to fraction form
    2,709.57/3,739.19 = 1,530.62/x
  3. Step 3: Cross multiply
    2,709.57x = 3,739.19 × 1,530.62
  4. Step 4: Simplify right side
    2,709.57x = 5,723,279.00
  5. Step 5: Solve for x
    x = 5,723,279.00/2,709.57
  6. Step 6: Final answer
    x = 2,112.25

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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.