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Finding the Fourth Proportional to 6,618.41, 9,928.49 and 3,498.54

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Solution

The fourth proportional to 6,618.41, 9,928.49 and 3,498.54 is: 5,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.41 : 9,928.49 = 3,498.54 : x
  2. Step 2: Convert to fraction form
    6,618.41/9,928.49 = 3,498.54/x
  3. Step 3: Cross multiply
    6,618.41x = 9,928.49 × 3,498.54
  4. Step 4: Simplify right side
    6,618.41x = 34,735,219.40
  5. Step 5: Solve for x
    x = 34,735,219.40/6,618.41
  6. Step 6: Final answer
    x = 5,248.27

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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.