Home / 7,979.49-11,969.52-4,079.34

Finding the Fourth Proportional to 7,979.49, 11,969.52 and 4,079.34

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Solution

The fourth proportional to 7,979.49, 11,969.52 and 4,079.34 is: 6,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.49 : 11,969.52 = 4,079.34 : x
  2. Step 2: Convert to fraction form
    7,979.49/11,969.52 = 4,079.34/x
  3. Step 3: Cross multiply
    7,979.49x = 11,969.52 × 4,079.34
  4. Step 4: Simplify right side
    7,979.49x = 48,827,741.72
  5. Step 5: Solve for x
    x = 48,827,741.72/7,979.49
  6. Step 6: Final answer
    x = 6,119.16

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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.