Home / 1,270.77-1,906.95-1,260.33

Finding the Fourth Proportional to 1,270.77, 1,906.95 and 1,260.33

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Solution

The fourth proportional to 1,270.77, 1,906.95 and 1,260.33 is: 1,891.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.77 : 1,906.95 = 1,260.33 : x
  2. Step 2: Convert to fraction form
    1,270.77/1,906.95 = 1,260.33/x
  3. Step 3: Cross multiply
    1,270.77x = 1,906.95 × 1,260.33
  4. Step 4: Simplify right side
    1,270.77x = 2,403,386.29
  5. Step 5: Solve for x
    x = 2,403,386.29/1,270.77
  6. Step 6: Final answer
    x = 1,891.28

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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.