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Finding the Fourth Proportional to 3,333.90, 4,599.78 and 2,340

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Solution

The fourth proportional to 3,333.90, 4,599.78 and 2,340 is: 3,228.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.90 : 4,599.78 = 2,340 : x
  2. Step 2: Convert to fraction form
    3,333.90/4,599.78 = 2,340/x
  3. Step 3: Cross multiply
    3,333.90x = 4,599.78 × 2,340
  4. Step 4: Simplify right side
    3,333.90x = 10,763,485.20
  5. Step 5: Solve for x
    x = 10,763,485.20/3,333.90
  6. Step 6: Final answer
    x = 3,228.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.