Home / 6,970.88-9,619.79-3,784.30

Finding the Fourth Proportional to 6,970.88, 9,619.79 and 3,784.30

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Solution

The fourth proportional to 6,970.88, 9,619.79 and 3,784.30 is: 5,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.88 : 9,619.79 = 3,784.30 : x
  2. Step 2: Convert to fraction form
    6,970.88/9,619.79 = 3,784.30/x
  3. Step 3: Cross multiply
    6,970.88x = 9,619.79 × 3,784.30
  4. Step 4: Simplify right side
    6,970.88x = 36,404,128.33
  5. Step 5: Solve for x
    x = 36,404,128.33/6,970.88
  6. Step 6: Final answer
    x = 5,222.31

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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.