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Finding the Fourth Proportional to 2,698.99, 4,041.72 and 1,708.82

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Solution

The fourth proportional to 2,698.99, 4,041.72 and 1,708.82 is: 2,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.99 : 4,041.72 = 1,708.82 : x
  2. Step 2: Convert to fraction form
    2,698.99/4,041.72 = 1,708.82/x
  3. Step 3: Cross multiply
    2,698.99x = 4,041.72 × 1,708.82
  4. Step 4: Simplify right side
    2,698.99x = 6,906,551.76
  5. Step 5: Solve for x
    x = 6,906,551.76/2,698.99
  6. Step 6: Final answer
    x = 2,558.94

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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.