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Finding the Fourth Proportional to 3,470.40, 5,205.60 and 3,000.60

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Solution

The fourth proportional to 3,470.40, 5,205.60 and 3,000.60 is: 4,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.40 : 5,205.60 = 3,000.60 : x
  2. Step 2: Convert to fraction form
    3,470.40/5,205.60 = 3,000.60/x
  3. Step 3: Cross multiply
    3,470.40x = 5,205.60 × 3,000.60
  4. Step 4: Simplify right side
    3,470.40x = 15,619,923.36
  5. Step 5: Solve for x
    x = 15,619,923.36/3,470.40
  6. Step 6: Final answer
    x = 4,500.90

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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.