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Finding the Fourth Proportional to 6,740.70, 10,109.70 and 3,230.70

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Solution

The fourth proportional to 6,740.70, 10,109.70 and 3,230.70 is: 4,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,740.70 : 10,109.70 = 3,230.70 : x
  2. Step 2: Convert to fraction form
    6,740.70/10,109.70 = 3,230.70/x
  3. Step 3: Cross multiply
    6,740.70x = 10,109.70 × 3,230.70
  4. Step 4: Simplify right side
    6,740.70x = 32,661,407.79
  5. Step 5: Solve for x
    x = 32,661,407.79/6,740.70
  6. Step 6: Final answer
    x = 4,845.40

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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.