Home / 6,455.28-8,907.30-3,622.80

Finding the Fourth Proportional to 6,455.28, 8,907.30 and 3,622.80

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Solution

The fourth proportional to 6,455.28, 8,907.30 and 3,622.80 is: 4,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.28 : 8,907.30 = 3,622.80 : x
  2. Step 2: Convert to fraction form
    6,455.28/8,907.30 = 3,622.80/x
  3. Step 3: Cross multiply
    6,455.28x = 8,907.30 × 3,622.80
  4. Step 4: Simplify right side
    6,455.28x = 32,269,366.44
  5. Step 5: Solve for x
    x = 32,269,366.44/6,455.28
  6. Step 6: Final answer
    x = 4,998.91

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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.