Home / 1,769.42-2,653.79-1,681.61

Finding the Fourth Proportional to 1,769.42, 2,653.79 and 1,681.61

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Solution

The fourth proportional to 1,769.42, 2,653.79 and 1,681.61 is: 2,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.42 : 2,653.79 = 1,681.61 : x
  2. Step 2: Convert to fraction form
    1,769.42/2,653.79 = 1,681.61/x
  3. Step 3: Cross multiply
    1,769.42x = 2,653.79 × 1,681.61
  4. Step 4: Simplify right side
    1,769.42x = 4,462,638.03
  5. Step 5: Solve for x
    x = 4,462,638.03/1,769.42
  6. Step 6: Final answer
    x = 2,522.09

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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.