Home / 1,719.24-2,579.13-623.58

Finding the Fourth Proportional to 1,719.24, 2,579.13 and 623.58

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Solution

The fourth proportional to 1,719.24, 2,579.13 and 623.58 is: 935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.24 : 2,579.13 = 623.58 : x
  2. Step 2: Convert to fraction form
    1,719.24/2,579.13 = 623.58/x
  3. Step 3: Cross multiply
    1,719.24x = 2,579.13 × 623.58
  4. Step 4: Simplify right side
    1,719.24x = 1,608,293.89
  5. Step 5: Solve for x
    x = 1,608,293.89/1,719.24
  6. Step 6: Final answer
    x = 935.47

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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.