Home / 7,979.84-11,969.74-4,817.90

Finding the Fourth Proportional to 7,979.84, 11,969.74 and 4,817.90

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Solution

The fourth proportional to 7,979.84, 11,969.74 and 4,817.90 is: 7,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.84 : 11,969.74 = 4,817.90 : x
  2. Step 2: Convert to fraction form
    7,979.84/11,969.74 = 4,817.90/x
  3. Step 3: Cross multiply
    7,979.84x = 11,969.74 × 4,817.90
  4. Step 4: Simplify right side
    7,979.84x = 57,669,032.74
  5. Step 5: Solve for x
    x = 57,669,032.74/7,979.84
  6. Step 6: Final answer
    x = 7,226.84

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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.