Home / 3,940.24-5,908.89-1,307.26

Finding the Fourth Proportional to 3,940.24, 5,908.89 and 1,307.26

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Solution

The fourth proportional to 3,940.24, 5,908.89 and 1,307.26 is: 1,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.24 : 5,908.89 = 1,307.26 : x
  2. Step 2: Convert to fraction form
    3,940.24/5,908.89 = 1,307.26/x
  3. Step 3: Cross multiply
    3,940.24x = 5,908.89 × 1,307.26
  4. Step 4: Simplify right side
    3,940.24x = 7,724,455.54
  5. Step 5: Solve for x
    x = 7,724,455.54/3,940.24
  6. Step 6: Final answer
    x = 1,960.40

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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.