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Finding the Fourth Proportional to 2,873.54, 4,310.96 and 925.63

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Solution

The fourth proportional to 2,873.54, 4,310.96 and 925.63 is: 1,388.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.54 : 4,310.96 = 925.63 : x
  2. Step 2: Convert to fraction form
    2,873.54/4,310.96 = 925.63/x
  3. Step 3: Cross multiply
    2,873.54x = 4,310.96 × 925.63
  4. Step 4: Simplify right side
    2,873.54x = 3,990,338.50
  5. Step 5: Solve for x
    x = 3,990,338.50/2,873.54
  6. Step 6: Final answer
    x = 1,388.65

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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.