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Finding the Fourth Proportional to 2,390.58, 3,585.87 and 850.50

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Solution

The fourth proportional to 2,390.58, 3,585.87 and 850.50 is: 1,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.58 : 3,585.87 = 850.50 : x
  2. Step 2: Convert to fraction form
    2,390.58/3,585.87 = 850.50/x
  3. Step 3: Cross multiply
    2,390.58x = 3,585.87 × 850.50
  4. Step 4: Simplify right side
    2,390.58x = 3,049,782.44
  5. Step 5: Solve for x
    x = 3,049,782.44/2,390.58
  6. Step 6: Final answer
    x = 1,275.75

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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.