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Finding the Fourth Proportional to 4,680.70, 7,018.70 and 1,559.61

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Solution

The fourth proportional to 4,680.70, 7,018.70 and 1,559.61 is: 2,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.70 : 7,018.70 = 1,559.61 : x
  2. Step 2: Convert to fraction form
    4,680.70/7,018.70 = 1,559.61/x
  3. Step 3: Cross multiply
    4,680.70x = 7,018.70 × 1,559.61
  4. Step 4: Simplify right side
    4,680.70x = 10,946,391.82
  5. Step 5: Solve for x
    x = 10,946,391.82/4,680.70
  6. Step 6: Final answer
    x = 2,338.63

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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.