Home / 1,719.92-2,580.11-624.15

Finding the Fourth Proportional to 1,719.92, 2,580.11 and 624.15

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Solution

The fourth proportional to 1,719.92, 2,580.11 and 624.15 is: 936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.92 : 2,580.11 = 624.15 : x
  2. Step 2: Convert to fraction form
    1,719.92/2,580.11 = 624.15/x
  3. Step 3: Cross multiply
    1,719.92x = 2,580.11 × 624.15
  4. Step 4: Simplify right side
    1,719.92x = 1,610,377.22
  5. Step 5: Solve for x
    x = 1,610,377.22/1,719.92
  6. Step 6: Final answer
    x = 936.31

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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.