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Finding the Fourth Proportional to 6,478.83, 9,718.29 and 3,555.54

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Solution

The fourth proportional to 6,478.83, 9,718.29 and 3,555.54 is: 5,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,478.83 : 9,718.29 = 3,555.54 : x
  2. Step 2: Convert to fraction form
    6,478.83/9,718.29 = 3,555.54/x
  3. Step 3: Cross multiply
    6,478.83x = 9,718.29 × 3,555.54
  4. Step 4: Simplify right side
    6,478.83x = 34,553,768.83
  5. Step 5: Solve for x
    x = 34,553,768.83/6,478.83
  6. Step 6: Final answer
    x = 5,333.33

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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.