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Finding the Fourth Proportional to 5,775.57, 8,663.15 and 1,879.88

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Solution

The fourth proportional to 5,775.57, 8,663.15 and 1,879.88 is: 2,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.57 : 8,663.15 = 1,879.88 : x
  2. Step 2: Convert to fraction form
    5,775.57/8,663.15 = 1,879.88/x
  3. Step 3: Cross multiply
    5,775.57x = 8,663.15 × 1,879.88
  4. Step 4: Simplify right side
    5,775.57x = 16,285,643.81
  5. Step 5: Solve for x
    x = 16,285,643.81/5,775.57
  6. Step 6: Final answer
    x = 2,819.75

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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.