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Finding the Fourth Proportional to 1,879.93, 2,594.19 and 1,171.72

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Solution

The fourth proportional to 1,879.93, 2,594.19 and 1,171.72 is: 1,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.93 : 2,594.19 = 1,171.72 : x
  2. Step 2: Convert to fraction form
    1,879.93/2,594.19 = 1,171.72/x
  3. Step 3: Cross multiply
    1,879.93x = 2,594.19 × 1,171.72
  4. Step 4: Simplify right side
    1,879.93x = 3,039,664.31
  5. Step 5: Solve for x
    x = 3,039,664.31/1,879.93
  6. Step 6: Final answer
    x = 1,616.90

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1.5x scale

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.