Home / 7,940.24-11,912.08-2,393.12

Finding the Fourth Proportional to 7,940.24, 11,912.08 and 2,393.12

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Solution

The fourth proportional to 7,940.24, 11,912.08 and 2,393.12 is: 3,590.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.24 : 11,912.08 = 2,393.12 : x
  2. Step 2: Convert to fraction form
    7,940.24/11,912.08 = 2,393.12/x
  3. Step 3: Cross multiply
    7,940.24x = 11,912.08 × 2,393.12
  4. Step 4: Simplify right side
    7,940.24x = 28,507,036.89
  5. Step 5: Solve for x
    x = 28,507,036.89/7,940.24
  6. Step 6: Final answer
    x = 3,590.20

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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.