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Finding the Fourth Proportional to 4,679.56, 7,019.09 and 2,830.18

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Solution

The fourth proportional to 4,679.56, 7,019.09 and 2,830.18 is: 4,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.56 : 7,019.09 = 2,830.18 : x
  2. Step 2: Convert to fraction form
    4,679.56/7,019.09 = 2,830.18/x
  3. Step 3: Cross multiply
    4,679.56x = 7,019.09 × 2,830.18
  4. Step 4: Simplify right side
    4,679.56x = 19,865,288.14
  5. Step 5: Solve for x
    x = 19,865,288.14/4,679.56
  6. Step 6: Final answer
    x = 4,245.12

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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.