Home / 4,747.40-7,121.10-4,682.60

Finding the Fourth Proportional to 4,747.40, 7,121.10 and 4,682.60

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Solution

The fourth proportional to 4,747.40, 7,121.10 and 4,682.60 is: 7,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.40 : 7,121.10 = 4,682.60 : x
  2. Step 2: Convert to fraction form
    4,747.40/7,121.10 = 4,682.60/x
  3. Step 3: Cross multiply
    4,747.40x = 7,121.10 × 4,682.60
  4. Step 4: Simplify right side
    4,747.40x = 33,345,262.86
  5. Step 5: Solve for x
    x = 33,345,262.86/4,747.40
  6. Step 6: Final answer
    x = 7,023.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.