Home / 6,219.08-8,576.10-3,978.44

Finding the Fourth Proportional to 6,219.08, 8,576.10 and 3,978.44

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Solution

The fourth proportional to 6,219.08, 8,576.10 and 3,978.44 is: 5,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.08 : 8,576.10 = 3,978.44 : x
  2. Step 2: Convert to fraction form
    6,219.08/8,576.10 = 3,978.44/x
  3. Step 3: Cross multiply
    6,219.08x = 8,576.10 × 3,978.44
  4. Step 4: Simplify right side
    6,219.08x = 34,119,499.28
  5. Step 5: Solve for x
    x = 34,119,499.28/6,219.08
  6. Step 6: Final answer
    x = 5,486.26

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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.