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Finding the Fourth Proportional to 6,400.33, 9,599.81 and 1,720.82

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Solution

The fourth proportional to 6,400.33, 9,599.81 and 1,720.82 is: 2,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.33 : 9,599.81 = 1,720.82 : x
  2. Step 2: Convert to fraction form
    6,400.33/9,599.81 = 1,720.82/x
  3. Step 3: Cross multiply
    6,400.33x = 9,599.81 × 1,720.82
  4. Step 4: Simplify right side
    6,400.33x = 16,519,545.04
  5. Step 5: Solve for x
    x = 16,519,545.04/6,400.33
  6. Step 6: Final answer
    x = 2,581.05

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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.