Home / 5,474.45-8,215.64-2,188.46

Finding the Fourth Proportional to 5,474.45, 8,215.64 and 2,188.46

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Solution

The fourth proportional to 5,474.45, 8,215.64 and 2,188.46 is: 3,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.45 : 8,215.64 = 2,188.46 : x
  2. Step 2: Convert to fraction form
    5,474.45/8,215.64 = 2,188.46/x
  3. Step 3: Cross multiply
    5,474.45x = 8,215.64 × 2,188.46
  4. Step 4: Simplify right side
    5,474.45x = 17,979,617.32
  5. Step 5: Solve for x
    x = 17,979,617.32/5,474.45
  6. Step 6: Final answer
    x = 3,284.28

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1.5x scale

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.