Home / 6,440.03-9,678.50-3,808.97

Finding the Fourth Proportional to 6,440.03, 9,678.50 and 3,808.97

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Solution

The fourth proportional to 6,440.03, 9,678.50 and 3,808.97 is: 5,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.03 : 9,678.50 = 3,808.97 : x
  2. Step 2: Convert to fraction form
    6,440.03/9,678.50 = 3,808.97/x
  3. Step 3: Cross multiply
    6,440.03x = 9,678.50 × 3,808.97
  4. Step 4: Simplify right side
    6,440.03x = 36,865,097.84
  5. Step 5: Solve for x
    x = 36,865,097.84/6,440.03
  6. Step 6: Final answer
    x = 5,724.37

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1.5x scale

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.