Home / 1,669.24-2,291.21-1,478.56

Finding the Fourth Proportional to 1,669.24, 2,291.21 and 1,478.56

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Solution

The fourth proportional to 1,669.24, 2,291.21 and 1,478.56 is: 2,029.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.24 : 2,291.21 = 1,478.56 : x
  2. Step 2: Convert to fraction form
    1,669.24/2,291.21 = 1,478.56/x
  3. Step 3: Cross multiply
    1,669.24x = 2,291.21 × 1,478.56
  4. Step 4: Simplify right side
    1,669.24x = 3,387,691.46
  5. Step 5: Solve for x
    x = 3,387,691.46/1,669.24
  6. Step 6: Final answer
    x = 2,029.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.