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Finding the Fourth Proportional to 7,003.98, 10,505.81 and 1,739.01

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Solution

The fourth proportional to 7,003.98, 10,505.81 and 1,739.01 is: 2,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.98 : 10,505.81 = 1,739.01 : x
  2. Step 2: Convert to fraction form
    7,003.98/10,505.81 = 1,739.01/x
  3. Step 3: Cross multiply
    7,003.98x = 10,505.81 × 1,739.01
  4. Step 4: Simplify right side
    7,003.98x = 18,269,708.65
  5. Step 5: Solve for x
    x = 18,269,708.65/7,003.98
  6. Step 6: Final answer
    x = 2,608.48

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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.