Home / 7,020.46-10,533.15-2,638.60

Finding the Fourth Proportional to 7,020.46, 10,533.15 and 2,638.60

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Solution

The fourth proportional to 7,020.46, 10,533.15 and 2,638.60 is: 3,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.46 : 10,533.15 = 2,638.60 : x
  2. Step 2: Convert to fraction form
    7,020.46/10,533.15 = 2,638.60/x
  3. Step 3: Cross multiply
    7,020.46x = 10,533.15 × 2,638.60
  4. Step 4: Simplify right side
    7,020.46x = 27,792,769.59
  5. Step 5: Solve for x
    x = 27,792,769.59/7,020.46
  6. Step 6: Final answer
    x = 3,958.82

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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.