Home / 4,980.78-7,474.65-2,059.11

Finding the Fourth Proportional to 4,980.78, 7,474.65 and 2,059.11

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Solution

The fourth proportional to 4,980.78, 7,474.65 and 2,059.11 is: 3,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.78 : 7,474.65 = 2,059.11 : x
  2. Step 2: Convert to fraction form
    4,980.78/7,474.65 = 2,059.11/x
  3. Step 3: Cross multiply
    4,980.78x = 7,474.65 × 2,059.11
  4. Step 4: Simplify right side
    4,980.78x = 15,391,126.56
  5. Step 5: Solve for x
    x = 15,391,126.56/4,980.78
  6. Step 6: Final answer
    x = 3,090.10

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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.