Home / 1,906.48-2,630.60-1,207.36

Finding the Fourth Proportional to 1,906.48, 2,630.60 and 1,207.36

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Solution

The fourth proportional to 1,906.48, 2,630.60 and 1,207.36 is: 1,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.48 : 2,630.60 = 1,207.36 : x
  2. Step 2: Convert to fraction form
    1,906.48/2,630.60 = 1,207.36/x
  3. Step 3: Cross multiply
    1,906.48x = 2,630.60 × 1,207.36
  4. Step 4: Simplify right side
    1,906.48x = 3,176,081.22
  5. Step 5: Solve for x
    x = 3,176,081.22/1,906.48
  6. Step 6: Final answer
    x = 1,665.94

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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.