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Finding the Fourth Proportional to 6,957.76, 9,602.09 and 3,974.56

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Solution

The fourth proportional to 6,957.76, 9,602.09 and 3,974.56 is: 5,485.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957.76 : 9,602.09 = 3,974.56 : x
  2. Step 2: Convert to fraction form
    6,957.76/9,602.09 = 3,974.56/x
  3. Step 3: Cross multiply
    6,957.76x = 9,602.09 × 3,974.56
  4. Step 4: Simplify right side
    6,957.76x = 38,164,130.23
  5. Step 5: Solve for x
    x = 38,164,130.23/6,957.76
  6. Step 6: Final answer
    x = 5,485.12

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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.