Home / 1,579.78-2,369.55-484.05

Finding the Fourth Proportional to 1,579.78, 2,369.55 and 484.05

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Solution

The fourth proportional to 1,579.78, 2,369.55 and 484.05 is: 726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.78 : 2,369.55 = 484.05 : x
  2. Step 2: Convert to fraction form
    1,579.78/2,369.55 = 484.05/x
  3. Step 3: Cross multiply
    1,579.78x = 2,369.55 × 484.05
  4. Step 4: Simplify right side
    1,579.78x = 1,146,980.68
  5. Step 5: Solve for x
    x = 1,146,980.68/1,579.78
  6. Step 6: Final answer
    x = 726.04

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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.