Home / 6,311.02-8,709.40-3,622.73

Finding the Fourth Proportional to 6,311.02, 8,709.40 and 3,622.73

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Solution

The fourth proportional to 6,311.02, 8,709.40 and 3,622.73 is: 4,999.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.02 : 8,709.40 = 3,622.73 : x
  2. Step 2: Convert to fraction form
    6,311.02/8,709.40 = 3,622.73/x
  3. Step 3: Cross multiply
    6,311.02x = 8,709.40 × 3,622.73
  4. Step 4: Simplify right side
    6,311.02x = 31,551,761.12
  5. Step 5: Solve for x
    x = 31,551,761.12/6,311.02
  6. Step 6: Final answer
    x = 4,999.47

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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.