Home / 1,400.22-2,098.89-669.24

Finding the Fourth Proportional to 1,400.22, 2,098.89 and 669.24

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Solution

The fourth proportional to 1,400.22, 2,098.89 and 669.24 is: 1,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.22 : 2,098.89 = 669.24 : x
  2. Step 2: Convert to fraction form
    1,400.22/2,098.89 = 669.24/x
  3. Step 3: Cross multiply
    1,400.22x = 2,098.89 × 669.24
  4. Step 4: Simplify right side
    1,400.22x = 1,404,661.14
  5. Step 5: Solve for x
    x = 1,404,661.14/1,400.22
  6. Step 6: Final answer
    x = 1,003.17

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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.