Home / 1,399.44-2,095.96-669.52

Finding the Fourth Proportional to 1,399.44, 2,095.96 and 669.52

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Solution

The fourth proportional to 1,399.44, 2,095.96 and 669.52 is: 1,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399.44 : 2,095.96 = 669.52 : x
  2. Step 2: Convert to fraction form
    1,399.44/2,095.96 = 669.52/x
  3. Step 3: Cross multiply
    1,399.44x = 2,095.96 × 669.52
  4. Step 4: Simplify right side
    1,399.44x = 1,403,287.14
  5. Step 5: Solve for x
    x = 1,403,287.14/1,399.44
  6. Step 6: Final answer
    x = 1,002.75

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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.