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Finding the Fourth Proportional to 7,883.11, 10,879.28 and 4,899.07

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Solution

The fourth proportional to 7,883.11, 10,879.28 and 4,899.07 is: 6,761.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.11 : 10,879.28 = 4,899.07 : x
  2. Step 2: Convert to fraction form
    7,883.11/10,879.28 = 4,899.07/x
  3. Step 3: Cross multiply
    7,883.11x = 10,879.28 × 4,899.07
  4. Step 4: Simplify right side
    7,883.11x = 53,298,354.27
  5. Step 5: Solve for x
    x = 53,298,354.27/7,883.11
  6. Step 6: Final answer
    x = 6,761.08

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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.