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Finding the Fourth Proportional to 7,133.80, 9,850.90 and 4,485.80

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Solution

The fourth proportional to 7,133.80, 9,850.90 and 4,485.80 is: 6,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.80 : 9,850.90 = 4,485.80 : x
  2. Step 2: Convert to fraction form
    7,133.80/9,850.90 = 4,485.80/x
  3. Step 3: Cross multiply
    7,133.80x = 9,850.90 × 4,485.80
  4. Step 4: Simplify right side
    7,133.80x = 44,189,167.22
  5. Step 5: Solve for x
    x = 44,189,167.22/7,133.80
  6. Step 6: Final answer
    x = 6,194.34

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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.