Home / 7,884.02-11,826.34-2,619.50

Finding the Fourth Proportional to 7,884.02, 11,826.34 and 2,619.50

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Solution

The fourth proportional to 7,884.02, 11,826.34 and 2,619.50 is: 3,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.02 : 11,826.34 = 2,619.50 : x
  2. Step 2: Convert to fraction form
    7,884.02/11,826.34 = 2,619.50/x
  3. Step 3: Cross multiply
    7,884.02x = 11,826.34 × 2,619.50
  4. Step 4: Simplify right side
    7,884.02x = 30,979,031.95
  5. Step 5: Solve for x
    x = 30,979,031.95/7,884.02
  6. Step 6: Final answer
    x = 3,929.34

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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.