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Finding the Fourth Proportional to 2,873.96, 4,310.80 and 926.12

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Solution

The fourth proportional to 2,873.96, 4,310.80 and 926.12 is: 1,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.96 : 4,310.80 = 926.12 : x
  2. Step 2: Convert to fraction form
    2,873.96/4,310.80 = 926.12/x
  3. Step 3: Cross multiply
    2,873.96x = 4,310.80 × 926.12
  4. Step 4: Simplify right side
    2,873.96x = 3,992,318.10
  5. Step 5: Solve for x
    x = 3,992,318.10/2,873.96
  6. Step 6: Final answer
    x = 1,389.13

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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.