Home / 3,109.47-4,664.34-1,161.51

Finding the Fourth Proportional to 3,109.47, 4,664.34 and 1,161.51

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Solution

The fourth proportional to 3,109.47, 4,664.34 and 1,161.51 is: 1,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.47 : 4,664.34 = 1,161.51 : x
  2. Step 2: Convert to fraction form
    3,109.47/4,664.34 = 1,161.51/x
  3. Step 3: Cross multiply
    3,109.47x = 4,664.34 × 1,161.51
  4. Step 4: Simplify right side
    3,109.47x = 5,417,677.55
  5. Step 5: Solve for x
    x = 5,417,677.55/3,109.47
  6. Step 6: Final answer
    x = 1,742.32

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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.