Home / 7,102.12-9,800.70-4,450.96

Finding the Fourth Proportional to 7,102.12, 9,800.70 and 4,450.96

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Solution

The fourth proportional to 7,102.12, 9,800.70 and 4,450.96 is: 6,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.12 : 9,800.70 = 4,450.96 : x
  2. Step 2: Convert to fraction form
    7,102.12/9,800.70 = 4,450.96/x
  3. Step 3: Cross multiply
    7,102.12x = 9,800.70 × 4,450.96
  4. Step 4: Simplify right side
    7,102.12x = 43,622,523.67
  5. Step 5: Solve for x
    x = 43,622,523.67/7,102.12
  6. Step 6: Final answer
    x = 6,142.18

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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.