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Finding the Fourth Proportional to 5,774.92, 8,664.39 and 1,879.30

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Solution

The fourth proportional to 5,774.92, 8,664.39 and 1,879.30 is: 2,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.92 : 8,664.39 = 1,879.30 : x
  2. Step 2: Convert to fraction form
    5,774.92/8,664.39 = 1,879.30/x
  3. Step 3: Cross multiply
    5,774.92x = 8,664.39 × 1,879.30
  4. Step 4: Simplify right side
    5,774.92x = 16,282,988.13
  5. Step 5: Solve for x
    x = 16,282,988.13/5,774.92
  6. Step 6: Final answer
    x = 2,819.60

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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.