Home / 7,986.72-11,980.58-2,440.07

Finding the Fourth Proportional to 7,986.72, 11,980.58 and 2,440.07

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Solution

The fourth proportional to 7,986.72, 11,980.58 and 2,440.07 is: 3,660.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.72 : 11,980.58 = 2,440.07 : x
  2. Step 2: Convert to fraction form
    7,986.72/11,980.58 = 2,440.07/x
  3. Step 3: Cross multiply
    7,986.72x = 11,980.58 × 2,440.07
  4. Step 4: Simplify right side
    7,986.72x = 29,233,381.74
  5. Step 5: Solve for x
    x = 29,233,381.74/7,986.72
  6. Step 6: Final answer
    x = 3,660.25

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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.