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Finding the Fourth Proportional to 5,558.80, 8,379.80 and 5,192.16

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Solution

The fourth proportional to 5,558.80, 8,379.80 and 5,192.16 is: 7,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.80 : 8,379.80 = 5,192.16 : x
  2. Step 2: Convert to fraction form
    5,558.80/8,379.80 = 5,192.16/x
  3. Step 3: Cross multiply
    5,558.80x = 8,379.80 × 5,192.16
  4. Step 4: Simplify right side
    5,558.80x = 43,509,262.37
  5. Step 5: Solve for x
    x = 43,509,262.37/5,558.80
  6. Step 6: Final answer
    x = 7,827.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.