Home / 1,623.18-2,433.57-648.54

Finding the Fourth Proportional to 1,623.18, 2,433.57 and 648.54

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Solution

The fourth proportional to 1,623.18, 2,433.57 and 648.54 is: 972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.18 : 2,433.57 = 648.54 : x
  2. Step 2: Convert to fraction form
    1,623.18/2,433.57 = 648.54/x
  3. Step 3: Cross multiply
    1,623.18x = 2,433.57 × 648.54
  4. Step 4: Simplify right side
    1,623.18x = 1,578,267.49
  5. Step 5: Solve for x
    x = 1,578,267.49/1,623.18
  6. Step 6: Final answer
    x = 972.33

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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.