Home / 3,960.10-5,940.15-2,315.80

Finding the Fourth Proportional to 3,960.10, 5,940.15 and 2,315.80

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Solution

The fourth proportional to 3,960.10, 5,940.15 and 2,315.80 is: 3,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.10 : 5,940.15 = 2,315.80 : x
  2. Step 2: Convert to fraction form
    3,960.10/5,940.15 = 2,315.80/x
  3. Step 3: Cross multiply
    3,960.10x = 5,940.15 × 2,315.80
  4. Step 4: Simplify right side
    3,960.10x = 13,756,199.37
  5. Step 5: Solve for x
    x = 13,756,199.37/3,960.10
  6. Step 6: Final answer
    x = 3,473.70

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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.