Home / 5,414.45-8,117.21-2,638.17

Finding the Fourth Proportional to 5,414.45, 8,117.21 and 2,638.17

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Solution

The fourth proportional to 5,414.45, 8,117.21 and 2,638.17 is: 3,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.45 : 8,117.21 = 2,638.17 : x
  2. Step 2: Convert to fraction form
    5,414.45/8,117.21 = 2,638.17/x
  3. Step 3: Cross multiply
    5,414.45x = 8,117.21 × 2,638.17
  4. Step 4: Simplify right side
    5,414.45x = 21,414,586.50
  5. Step 5: Solve for x
    x = 21,414,586.50/5,414.45
  6. Step 6: Final answer
    x = 3,955.08

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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.