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Finding the Fourth Proportional to 6,980.44, 9,633.49 and 3,955.53

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Solution

The fourth proportional to 6,980.44, 9,633.49 and 3,955.53 is: 5,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980.44 : 9,633.49 = 3,955.53 : x
  2. Step 2: Convert to fraction form
    6,980.44/9,633.49 = 3,955.53/x
  3. Step 3: Cross multiply
    6,980.44x = 9,633.49 × 3,955.53
  4. Step 4: Simplify right side
    6,980.44x = 38,105,548.81
  5. Step 5: Solve for x
    x = 38,105,548.81/6,980.44
  6. Step 6: Final answer
    x = 5,458.91

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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.