Home / 1,876.60-2,589.64-1,091.08

Finding the Fourth Proportional to 1,876.60, 2,589.64 and 1,091.08

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Solution

The fourth proportional to 1,876.60, 2,589.64 and 1,091.08 is: 1,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876.60 : 2,589.64 = 1,091.08 : x
  2. Step 2: Convert to fraction form
    1,876.60/2,589.64 = 1,091.08/x
  3. Step 3: Cross multiply
    1,876.60x = 2,589.64 × 1,091.08
  4. Step 4: Simplify right side
    1,876.60x = 2,825,504.41
  5. Step 5: Solve for x
    x = 2,825,504.41/1,876.60
  6. Step 6: Final answer
    x = 1,505.65

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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.