Home / 4,980.45-7,471.22-1,647.48

Finding the Fourth Proportional to 4,980.45, 7,471.22 and 1,647.48

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Solution

The fourth proportional to 4,980.45, 7,471.22 and 1,647.48 is: 2,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.45 : 7,471.22 = 1,647.48 : x
  2. Step 2: Convert to fraction form
    4,980.45/7,471.22 = 1,647.48/x
  3. Step 3: Cross multiply
    4,980.45x = 7,471.22 × 1,647.48
  4. Step 4: Simplify right side
    4,980.45x = 12,308,711.48
  5. Step 5: Solve for x
    x = 12,308,711.48/4,980.45
  6. Step 6: Final answer
    x = 2,471.41

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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.