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Finding the Fourth Proportional to 7,883.78, 10,879.17 and 5,235.98

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Solution

The fourth proportional to 7,883.78, 10,879.17 and 5,235.98 is: 7,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.78 : 10,879.17 = 5,235.98 : x
  2. Step 2: Convert to fraction form
    7,883.78/10,879.17 = 5,235.98/x
  3. Step 3: Cross multiply
    7,883.78x = 10,879.17 × 5,235.98
  4. Step 4: Simplify right side
    7,883.78x = 56,963,062.14
  5. Step 5: Solve for x
    x = 56,963,062.14/7,883.78
  6. Step 6: Final answer
    x = 7,225.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.