Home / 1,790.19-2,470.43-1,091.56

Finding the Fourth Proportional to 1,790.19, 2,470.43 and 1,091.56

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Solution

The fourth proportional to 1,790.19, 2,470.43 and 1,091.56 is: 1,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.19 : 2,470.43 = 1,091.56 : x
  2. Step 2: Convert to fraction form
    1,790.19/2,470.43 = 1,091.56/x
  3. Step 3: Cross multiply
    1,790.19x = 2,470.43 × 1,091.56
  4. Step 4: Simplify right side
    1,790.19x = 2,696,622.57
  5. Step 5: Solve for x
    x = 2,696,622.57/1,790.19
  6. Step 6: Final answer
    x = 1,506.33

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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.