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Finding the Fourth Proportional to 6,387.09, 9,581.09 and 1,707.09

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Solution

The fourth proportional to 6,387.09, 9,581.09 and 1,707.09 is: 2,560.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.09 : 9,581.09 = 1,707.09 : x
  2. Step 2: Convert to fraction form
    6,387.09/9,581.09 = 1,707.09/x
  3. Step 3: Cross multiply
    6,387.09x = 9,581.09 × 1,707.09
  4. Step 4: Simplify right side
    6,387.09x = 16,355,774.39
  5. Step 5: Solve for x
    x = 16,355,774.39/6,387.09
  6. Step 6: Final answer
    x = 2,560.76

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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.