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Finding the Fourth Proportional to 6,651.07, 9,975.79 and 1,720.30

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Solution

The fourth proportional to 6,651.07, 9,975.79 and 1,720.30 is: 2,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.07 : 9,975.79 = 1,720.30 : x
  2. Step 2: Convert to fraction form
    6,651.07/9,975.79 = 1,720.30/x
  3. Step 3: Cross multiply
    6,651.07x = 9,975.79 × 1,720.30
  4. Step 4: Simplify right side
    6,651.07x = 17,161,351.54
  5. Step 5: Solve for x
    x = 17,161,351.54/6,651.07
  6. Step 6: Final answer
    x = 2,580.24

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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.