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Finding the Fourth Proportional to 4,721.82, 7,068.15 and 4,318.62

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Solution

The fourth proportional to 4,721.82, 7,068.15 and 4,318.62 is: 6,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.82 : 7,068.15 = 4,318.62 : x
  2. Step 2: Convert to fraction form
    4,721.82/7,068.15 = 4,318.62/x
  3. Step 3: Cross multiply
    4,721.82x = 7,068.15 × 4,318.62
  4. Step 4: Simplify right side
    4,721.82x = 30,524,653.95
  5. Step 5: Solve for x
    x = 30,524,653.95/4,721.82
  6. Step 6: Final answer
    x = 6,464.59

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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.