Home / 1,753.02-2,628.99-1,638

Finding the Fourth Proportional to 1,753.02, 2,628.99 and 1,638

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Solution

The fourth proportional to 1,753.02, 2,628.99 and 1,638 is: 2,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.02 : 2,628.99 = 1,638 : x
  2. Step 2: Convert to fraction form
    1,753.02/2,628.99 = 1,638/x
  3. Step 3: Cross multiply
    1,753.02x = 2,628.99 × 1,638
  4. Step 4: Simplify right side
    1,753.02x = 4,306,285.62
  5. Step 5: Solve for x
    x = 4,306,285.62/1,753.02
  6. Step 6: Final answer
    x = 2,456.50

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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.