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Finding the Fourth Proportional to 1,880.89, 2,821.35 and 582.36

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Solution

The fourth proportional to 1,880.89, 2,821.35 and 582.36 is: 873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.89 : 2,821.35 = 582.36 : x
  2. Step 2: Convert to fraction form
    1,880.89/2,821.35 = 582.36/x
  3. Step 3: Cross multiply
    1,880.89x = 2,821.35 × 582.36
  4. Step 4: Simplify right side
    1,880.89x = 1,643,043.57
  5. Step 5: Solve for x
    x = 1,643,043.57/1,880.89
  6. Step 6: Final answer
    x = 873.55

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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.