Home / 7,084.38-9,776.46-3,940.50

Finding the Fourth Proportional to 7,084.38, 9,776.46 and 3,940.50

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Solution

The fourth proportional to 7,084.38, 9,776.46 and 3,940.50 is: 5,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.38 : 9,776.46 = 3,940.50 : x
  2. Step 2: Convert to fraction form
    7,084.38/9,776.46 = 3,940.50/x
  3. Step 3: Cross multiply
    7,084.38x = 9,776.46 × 3,940.50
  4. Step 4: Simplify right side
    7,084.38x = 38,524,140.63
  5. Step 5: Solve for x
    x = 38,524,140.63/7,084.38
  6. Step 6: Final answer
    x = 5,437.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.