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Finding the Fourth Proportional to 7,889.30, 10,887.22 and 4,352.50

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Solution

The fourth proportional to 7,889.30, 10,887.22 and 4,352.50 is: 6,006.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.30 : 10,887.22 = 4,352.50 : x
  2. Step 2: Convert to fraction form
    7,889.30/10,887.22 = 4,352.50/x
  3. Step 3: Cross multiply
    7,889.30x = 10,887.22 × 4,352.50
  4. Step 4: Simplify right side
    7,889.30x = 47,386,625.05
  5. Step 5: Solve for x
    x = 47,386,625.05/7,889.30
  6. Step 6: Final answer
    x = 6,006.44

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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.