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Finding the Fourth Proportional to 5,879.10, 8,807.85 and 5,490.30

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Solution

The fourth proportional to 5,879.10, 8,807.85 and 5,490.30 is: 8,225.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.10 : 8,807.85 = 5,490.30 : x
  2. Step 2: Convert to fraction form
    5,879.10/8,807.85 = 5,490.30/x
  3. Step 3: Cross multiply
    5,879.10x = 8,807.85 × 5,490.30
  4. Step 4: Simplify right side
    5,879.10x = 48,357,738.86
  5. Step 5: Solve for x
    x = 48,357,738.86/5,879.10
  6. Step 6: Final answer
    x = 8,225.36

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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.