Home / 6,970.82-9,619.75-3,827.21

Finding the Fourth Proportional to 6,970.82, 9,619.75 and 3,827.21

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Solution

The fourth proportional to 6,970.82, 9,619.75 and 3,827.21 is: 5,281.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.82 : 9,619.75 = 3,827.21 : x
  2. Step 2: Convert to fraction form
    6,970.82/9,619.75 = 3,827.21/x
  3. Step 3: Cross multiply
    6,970.82x = 9,619.75 × 3,827.21
  4. Step 4: Simplify right side
    6,970.82x = 36,816,837.01
  5. Step 5: Solve for x
    x = 36,816,837.01/6,970.82
  6. Step 6: Final answer
    x = 5,281.56

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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.