Home / 1,804.20-2,706.32-709.08

Finding the Fourth Proportional to 1,804.20, 2,706.32 and 709.08

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Solution

The fourth proportional to 1,804.20, 2,706.32 and 709.08 is: 1,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.20 : 2,706.32 = 709.08 : x
  2. Step 2: Convert to fraction form
    1,804.20/2,706.32 = 709.08/x
  3. Step 3: Cross multiply
    1,804.20x = 2,706.32 × 709.08
  4. Step 4: Simplify right side
    1,804.20x = 1,918,997.39
  5. Step 5: Solve for x
    x = 1,918,997.39/1,804.20
  6. Step 6: Final answer
    x = 1,063.63

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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.