Home / 6,222.40-8,586.78-3,427.90

Finding the Fourth Proportional to 6,222.40, 8,586.78 and 3,427.90

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Solution

The fourth proportional to 6,222.40, 8,586.78 and 3,427.90 is: 4,730.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.40 : 8,586.78 = 3,427.90 : x
  2. Step 2: Convert to fraction form
    6,222.40/8,586.78 = 3,427.90/x
  3. Step 3: Cross multiply
    6,222.40x = 8,586.78 × 3,427.90
  4. Step 4: Simplify right side
    6,222.40x = 29,434,623.16
  5. Step 5: Solve for x
    x = 29,434,623.16/6,222.40
  6. Step 6: Final answer
    x = 4,730.43

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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.