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Finding the Fourth Proportional to 1,049.36, 1,448.22 and 656.51

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Solution

The fourth proportional to 1,049.36, 1,448.22 and 656.51 is: 906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.36 : 1,448.22 = 656.51 : x
  2. Step 2: Convert to fraction form
    1,049.36/1,448.22 = 656.51/x
  3. Step 3: Cross multiply
    1,049.36x = 1,448.22 × 656.51
  4. Step 4: Simplify right side
    1,049.36x = 950,763.67
  5. Step 5: Solve for x
    x = 950,763.67/1,049.36
  6. Step 6: Final answer
    x = 906.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.