Home / 1,930.84-2,664.88-1,091.81

Finding the Fourth Proportional to 1,930.84, 2,664.88 and 1,091.81

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Solution

The fourth proportional to 1,930.84, 2,664.88 and 1,091.81 is: 1,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.84 : 2,664.88 = 1,091.81 : x
  2. Step 2: Convert to fraction form
    1,930.84/2,664.88 = 1,091.81/x
  3. Step 3: Cross multiply
    1,930.84x = 2,664.88 × 1,091.81
  4. Step 4: Simplify right side
    1,930.84x = 2,909,546.57
  5. Step 5: Solve for x
    x = 2,909,546.57/1,930.84
  6. Step 6: Final answer
    x = 1,506.88

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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.