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Finding the Fourth Proportional to 1,809.06, 2,708.25 and 1,348.86

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Solution

The fourth proportional to 1,809.06, 2,708.25 and 1,348.86 is: 2,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.06 : 2,708.25 = 1,348.86 : x
  2. Step 2: Convert to fraction form
    1,809.06/2,708.25 = 1,348.86/x
  3. Step 3: Cross multiply
    1,809.06x = 2,708.25 × 1,348.86
  4. Step 4: Simplify right side
    1,809.06x = 3,653,050.10
  5. Step 5: Solve for x
    x = 3,653,050.10/1,809.06
  6. Step 6: Final answer
    x = 2,019.31

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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.