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Finding the Fourth Proportional to 1,879.66, 2,821.92 and 1,592.92

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Solution

The fourth proportional to 1,879.66, 2,821.92 and 1,592.92 is: 2,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.66 : 2,821.92 = 1,592.92 : x
  2. Step 2: Convert to fraction form
    1,879.66/2,821.92 = 1,592.92/x
  3. Step 3: Cross multiply
    1,879.66x = 2,821.92 × 1,592.92
  4. Step 4: Simplify right side
    1,879.66x = 4,495,092.81
  5. Step 5: Solve for x
    x = 4,495,092.81/1,879.66
  6. Step 6: Final answer
    x = 2,391.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.