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Finding the Fourth Proportional to 2,750.61, 4,104.50 and 2,643.99

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Solution

The fourth proportional to 2,750.61, 4,104.50 and 2,643.99 is: 3,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.61 : 4,104.50 = 2,643.99 : x
  2. Step 2: Convert to fraction form
    2,750.61/4,104.50 = 2,643.99/x
  3. Step 3: Cross multiply
    2,750.61x = 4,104.50 × 2,643.99
  4. Step 4: Simplify right side
    2,750.61x = 10,852,258.87
  5. Step 5: Solve for x
    x = 10,852,258.87/2,750.61
  6. Step 6: Final answer
    x = 3,945.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.