Home / 1,698.56-2,548.68-1,253.84

Finding the Fourth Proportional to 1,698.56, 2,548.68 and 1,253.84

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Solution

The fourth proportional to 1,698.56, 2,548.68 and 1,253.84 is: 1,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.56 : 2,548.68 = 1,253.84 : x
  2. Step 2: Convert to fraction form
    1,698.56/2,548.68 = 1,253.84/x
  3. Step 3: Cross multiply
    1,698.56x = 2,548.68 × 1,253.84
  4. Step 4: Simplify right side
    1,698.56x = 3,195,636.93
  5. Step 5: Solve for x
    x = 3,195,636.93/1,698.56
  6. Step 6: Final answer
    x = 1,881.38

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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.