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Finding the Fourth Proportional to 2,310.40, 3,465.60 and 1,840.60

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Solution

The fourth proportional to 2,310.40, 3,465.60 and 1,840.60 is: 2,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.40 : 3,465.60 = 1,840.60 : x
  2. Step 2: Convert to fraction form
    2,310.40/3,465.60 = 1,840.60/x
  3. Step 3: Cross multiply
    2,310.40x = 3,465.60 × 1,840.60
  4. Step 4: Simplify right side
    2,310.40x = 6,378,783.36
  5. Step 5: Solve for x
    x = 6,378,783.36/2,310.40
  6. Step 6: Final answer
    x = 2,760.90

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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.