Home / 5,315.84-7,969.56-2,194.04

Finding the Fourth Proportional to 5,315.84, 7,969.56 and 2,194.04

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Solution

The fourth proportional to 5,315.84, 7,969.56 and 2,194.04 is: 3,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.84 : 7,969.56 = 2,194.04 : x
  2. Step 2: Convert to fraction form
    5,315.84/7,969.56 = 2,194.04/x
  3. Step 3: Cross multiply
    5,315.84x = 7,969.56 × 2,194.04
  4. Step 4: Simplify right side
    5,315.84x = 17,485,533.42
  5. Step 5: Solve for x
    x = 17,485,533.42/5,315.84
  6. Step 6: Final answer
    x = 3,289.33

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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.