Home / 1,309.05-1,961.88-606.00

Finding the Fourth Proportional to 1,309.05, 1,961.88 and 606.00

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Solution

The fourth proportional to 1,309.05, 1,961.88 and 606.00 is: 908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309.05 : 1,961.88 = 606.00 : x
  2. Step 2: Convert to fraction form
    1,309.05/1,961.88 = 606.00/x
  3. Step 3: Cross multiply
    1,309.05x = 1,961.88 × 606.00
  4. Step 4: Simplify right side
    1,309.05x = 1,188,889.47
  5. Step 5: Solve for x
    x = 1,188,889.47/1,309.05
  6. Step 6: Final answer
    x = 908.21

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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.