Home / 3,109.47-4,664.05-1,161.53

Finding the Fourth Proportional to 3,109.47, 4,664.05 and 1,161.53

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Solution

The fourth proportional to 3,109.47, 4,664.05 and 1,161.53 is: 1,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.47 : 4,664.05 = 1,161.53 : x
  2. Step 2: Convert to fraction form
    3,109.47/4,664.05 = 1,161.53/x
  3. Step 3: Cross multiply
    3,109.47x = 4,664.05 × 1,161.53
  4. Step 4: Simplify right side
    3,109.47x = 5,417,407.77
  5. Step 5: Solve for x
    x = 5,417,407.77/3,109.47
  6. Step 6: Final answer
    x = 1,742.23

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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.