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Finding the Fourth Proportional to 1,610.36, 2,415.52 and 744.20

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Solution

The fourth proportional to 1,610.36, 2,415.52 and 744.20 is: 1,116.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.36 : 2,415.52 = 744.20 : x
  2. Step 2: Convert to fraction form
    1,610.36/2,415.52 = 744.20/x
  3. Step 3: Cross multiply
    1,610.36x = 2,415.52 × 744.20
  4. Step 4: Simplify right side
    1,610.36x = 1,797,629.98
  5. Step 5: Solve for x
    x = 1,797,629.98/1,610.36
  6. Step 6: Final answer
    x = 1,116.29

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1.5x scale

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.