Home / 6,975.84-9,626.64-3,991.62

Finding the Fourth Proportional to 6,975.84, 9,626.64 and 3,991.62

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Solution

The fourth proportional to 6,975.84, 9,626.64 and 3,991.62 is: 5,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.84 : 9,626.64 = 3,991.62 : x
  2. Step 2: Convert to fraction form
    6,975.84/9,626.64 = 3,991.62/x
  3. Step 3: Cross multiply
    6,975.84x = 9,626.64 × 3,991.62
  4. Step 4: Simplify right side
    6,975.84x = 38,425,888.76
  5. Step 5: Solve for x
    x = 38,425,888.76/6,975.84
  6. Step 6: Final answer
    x = 5,508.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.