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Finding the Fourth Proportional to 3,507.39, 5,260.97 and 910.32

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Solution

The fourth proportional to 3,507.39, 5,260.97 and 910.32 is: 1,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.39 : 5,260.97 = 910.32 : x
  2. Step 2: Convert to fraction form
    3,507.39/5,260.97 = 910.32/x
  3. Step 3: Cross multiply
    3,507.39x = 5,260.97 × 910.32
  4. Step 4: Simplify right side
    3,507.39x = 4,789,161.66
  5. Step 5: Solve for x
    x = 4,789,161.66/3,507.39
  6. Step 6: Final answer
    x = 1,365.45

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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.