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Finding the Fourth Proportional to 3,263.58, 4,891.07 and 1,783.45

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Solution

The fourth proportional to 3,263.58, 4,891.07 and 1,783.45 is: 2,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263.58 : 4,891.07 = 1,783.45 : x
  2. Step 2: Convert to fraction form
    3,263.58/4,891.07 = 1,783.45/x
  3. Step 3: Cross multiply
    3,263.58x = 4,891.07 × 1,783.45
  4. Step 4: Simplify right side
    3,263.58x = 8,722,978.79
  5. Step 5: Solve for x
    x = 8,722,978.79/3,263.58
  6. Step 6: Final answer
    x = 2,672.83

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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.