Home / 1,930.85-2,664.67-1,091.59

Finding the Fourth Proportional to 1,930.85, 2,664.67 and 1,091.59

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Solution

The fourth proportional to 1,930.85, 2,664.67 and 1,091.59 is: 1,506.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.85 : 2,664.67 = 1,091.59 : x
  2. Step 2: Convert to fraction form
    1,930.85/2,664.67 = 1,091.59/x
  3. Step 3: Cross multiply
    1,930.85x = 2,664.67 × 1,091.59
  4. Step 4: Simplify right side
    1,930.85x = 2,908,717.73
  5. Step 5: Solve for x
    x = 2,908,717.73/1,930.85
  6. Step 6: Final answer
    x = 1,506.45

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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.