Home / 4,960.80-7,430.40-3,009.60

Finding the Fourth Proportional to 4,960.80, 7,430.40 and 3,009.60

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Solution

The fourth proportional to 4,960.80, 7,430.40 and 3,009.60 is: 4,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,960.80 : 7,430.40 = 3,009.60 : x
  2. Step 2: Convert to fraction form
    4,960.80/7,430.40 = 3,009.60/x
  3. Step 3: Cross multiply
    4,960.80x = 7,430.40 × 3,009.60
  4. Step 4: Simplify right side
    4,960.80x = 22,362,531.84
  5. Step 5: Solve for x
    x = 22,362,531.84/4,960.80
  6. Step 6: Final answer
    x = 4,507.85

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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.