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Finding the Fourth Proportional to 1,893.54, 2,840.58 and 969.60

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Solution

The fourth proportional to 1,893.54, 2,840.58 and 969.60 is: 1,454.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.54 : 2,840.58 = 969.60 : x
  2. Step 2: Convert to fraction form
    1,893.54/2,840.58 = 969.60/x
  3. Step 3: Cross multiply
    1,893.54x = 2,840.58 × 969.60
  4. Step 4: Simplify right side
    1,893.54x = 2,754,226.37
  5. Step 5: Solve for x
    x = 2,754,226.37/1,893.54
  6. Step 6: Final answer
    x = 1,454.54

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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.