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Finding the Fourth Proportional to 6,501.66, 9,751.48 and 2,119.09

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Solution

The fourth proportional to 6,501.66, 9,751.48 and 2,119.09 is: 3,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,501.66 : 9,751.48 = 2,119.09 : x
  2. Step 2: Convert to fraction form
    6,501.66/9,751.48 = 2,119.09/x
  3. Step 3: Cross multiply
    6,501.66x = 9,751.48 × 2,119.09
  4. Step 4: Simplify right side
    6,501.66x = 20,664,234.08
  5. Step 5: Solve for x
    x = 20,664,234.08/6,501.66
  6. Step 6: Final answer
    x = 3,178.30

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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.