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Finding the Fourth Proportional to 6,558.86, 9,841.02 and 3,639.21

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Solution

The fourth proportional to 6,558.86, 9,841.02 and 3,639.21 is: 5,460.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.86 : 9,841.02 = 3,639.21 : x
  2. Step 2: Convert to fraction form
    6,558.86/9,841.02 = 3,639.21/x
  3. Step 3: Cross multiply
    6,558.86x = 9,841.02 × 3,639.21
  4. Step 4: Simplify right side
    6,558.86x = 35,813,538.39
  5. Step 5: Solve for x
    x = 35,813,538.39/6,558.86
  6. Step 6: Final answer
    x = 5,460.33

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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.