Home / 6,120.24-8,446.20-4,028.40

Finding the Fourth Proportional to 6,120.24, 8,446.20 and 4,028.40

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Solution

The fourth proportional to 6,120.24, 8,446.20 and 4,028.40 is: 5,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,120.24 : 8,446.20 = 4,028.40 : x
  2. Step 2: Convert to fraction form
    6,120.24/8,446.20 = 4,028.40/x
  3. Step 3: Cross multiply
    6,120.24x = 8,446.20 × 4,028.40
  4. Step 4: Simplify right side
    6,120.24x = 34,024,672.08
  5. Step 5: Solve for x
    x = 34,024,672.08/6,120.24
  6. Step 6: Final answer
    x = 5,559.37

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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.