Home / 6,262.75-8,640.21-4,139.29

Finding the Fourth Proportional to 6,262.75, 8,640.21 and 4,139.29

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Solution

The fourth proportional to 6,262.75, 8,640.21 and 4,139.29 is: 5,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,262.75 : 8,640.21 = 4,139.29 : x
  2. Step 2: Convert to fraction form
    6,262.75/8,640.21 = 4,139.29/x
  3. Step 3: Cross multiply
    6,262.75x = 8,640.21 × 4,139.29
  4. Step 4: Simplify right side
    6,262.75x = 35,764,334.85
  5. Step 5: Solve for x
    x = 35,764,334.85/6,262.75
  6. Step 6: Final answer
    x = 5,710.64

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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.