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Finding the Fourth Proportional to 6,885.60, 10,326.60 and 1,954.68

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Solution

The fourth proportional to 6,885.60, 10,326.60 and 1,954.68 is: 2,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.60 : 10,326.60 = 1,954.68 : x
  2. Step 2: Convert to fraction form
    6,885.60/10,326.60 = 1,954.68/x
  3. Step 3: Cross multiply
    6,885.60x = 10,326.60 × 1,954.68
  4. Step 4: Simplify right side
    6,885.60x = 20,185,198.49
  5. Step 5: Solve for x
    x = 20,185,198.49/6,885.60
  6. Step 6: Final answer
    x = 2,931.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.