Home / 1,529.72-2,104.62-1,179.80

Finding the Fourth Proportional to 1,529.72, 2,104.62 and 1,179.80

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Solution

The fourth proportional to 1,529.72, 2,104.62 and 1,179.80 is: 1,623.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.72 : 2,104.62 = 1,179.80 : x
  2. Step 2: Convert to fraction form
    1,529.72/2,104.62 = 1,179.80/x
  3. Step 3: Cross multiply
    1,529.72x = 2,104.62 × 1,179.80
  4. Step 4: Simplify right side
    1,529.72x = 2,483,030.68
  5. Step 5: Solve for x
    x = 2,483,030.68/1,529.72
  6. Step 6: Final answer
    x = 1,623.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.