Home / 6,970.79-9,619.36-3,784.02

Finding the Fourth Proportional to 6,970.79, 9,619.36 and 3,784.02

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Solution

The fourth proportional to 6,970.79, 9,619.36 and 3,784.02 is: 5,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.79 : 9,619.36 = 3,784.02 : x
  2. Step 2: Convert to fraction form
    6,970.79/9,619.36 = 3,784.02/x
  3. Step 3: Cross multiply
    6,970.79x = 9,619.36 × 3,784.02
  4. Step 4: Simplify right side
    6,970.79x = 36,399,805.09
  5. Step 5: Solve for x
    x = 36,399,805.09/6,970.79
  6. Step 6: Final answer
    x = 5,221.76

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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.