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Finding the Fourth Proportional to 6,995.45, 9,651.54 and 3,970.07

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Solution

The fourth proportional to 6,995.45, 9,651.54 and 3,970.07 is: 5,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995.45 : 9,651.54 = 3,970.07 : x
  2. Step 2: Convert to fraction form
    6,995.45/9,651.54 = 3,970.07/x
  3. Step 3: Cross multiply
    6,995.45x = 9,651.54 × 3,970.07
  4. Step 4: Simplify right side
    6,995.45x = 38,317,241.15
  5. Step 5: Solve for x
    x = 38,317,241.15/6,995.45
  6. Step 6: Final answer
    x = 5,477.46

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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.