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Finding the Fourth Proportional to 2,760.54, 3,810.21 and 1,698.57

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Solution

The fourth proportional to 2,760.54, 3,810.21 and 1,698.57 is: 2,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.54 : 3,810.21 = 1,698.57 : x
  2. Step 2: Convert to fraction form
    2,760.54/3,810.21 = 1,698.57/x
  3. Step 3: Cross multiply
    2,760.54x = 3,810.21 × 1,698.57
  4. Step 4: Simplify right side
    2,760.54x = 6,471,908.40
  5. Step 5: Solve for x
    x = 6,471,908.40/2,760.54
  6. Step 6: Final answer
    x = 2,344.44

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1.5x scale

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.