Home / 3,940.25-5,908.92-1,307.06

Finding the Fourth Proportional to 3,940.25, 5,908.92 and 1,307.06

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Solution

The fourth proportional to 3,940.25, 5,908.92 and 1,307.06 is: 1,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.25 : 5,908.92 = 1,307.06 : x
  2. Step 2: Convert to fraction form
    3,940.25/5,908.92 = 1,307.06/x
  3. Step 3: Cross multiply
    3,940.25x = 5,908.92 × 1,307.06
  4. Step 4: Simplify right side
    3,940.25x = 7,723,312.98
  5. Step 5: Solve for x
    x = 7,723,312.98/3,940.25
  6. Step 6: Final answer
    x = 1,960.11

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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.