Home / 2,840.36-4,261.17-1,109

Finding the Fourth Proportional to 2,840.36, 4,261.17 and 1,109

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Solution

The fourth proportional to 2,840.36, 4,261.17 and 1,109 is: 1,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.36 : 4,261.17 = 1,109 : x
  2. Step 2: Convert to fraction form
    2,840.36/4,261.17 = 1,109/x
  3. Step 3: Cross multiply
    2,840.36x = 4,261.17 × 1,109
  4. Step 4: Simplify right side
    2,840.36x = 4,725,637.53
  5. Step 5: Solve for x
    x = 4,725,637.53/2,840.36
  6. Step 6: Final answer
    x = 1,663.75

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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.