Home / 4,980.60-7,471.08-3,812.28

Finding the Fourth Proportional to 4,980.60, 7,471.08 and 3,812.28

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Solution

The fourth proportional to 4,980.60, 7,471.08 and 3,812.28 is: 5,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.60 : 7,471.08 = 3,812.28 : x
  2. Step 2: Convert to fraction form
    4,980.60/7,471.08 = 3,812.28/x
  3. Step 3: Cross multiply
    4,980.60x = 7,471.08 × 3,812.28
  4. Step 4: Simplify right side
    4,980.60x = 28,481,848.86
  5. Step 5: Solve for x
    x = 28,481,848.86/4,980.60
  6. Step 6: Final answer
    x = 5,718.56

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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.