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Finding the Fourth Proportional to 6,756.32, 9,322.08 and 3,961.28

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Solution

The fourth proportional to 6,756.32, 9,322.08 and 3,961.28 is: 5,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.32 : 9,322.08 = 3,961.28 : x
  2. Step 2: Convert to fraction form
    6,756.32/9,322.08 = 3,961.28/x
  3. Step 3: Cross multiply
    6,756.32x = 9,322.08 × 3,961.28
  4. Step 4: Simplify right side
    6,756.32x = 36,927,369.06
  5. Step 5: Solve for x
    x = 36,927,369.06/6,756.32
  6. Step 6: Final answer
    x = 5,465.60

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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.