Home / 1,681.07-2,520.53-1,103.27

Finding the Fourth Proportional to 1,681.07, 2,520.53 and 1,103.27

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Solution

The fourth proportional to 1,681.07, 2,520.53 and 1,103.27 is: 1,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.07 : 2,520.53 = 1,103.27 : x
  2. Step 2: Convert to fraction form
    1,681.07/2,520.53 = 1,103.27/x
  3. Step 3: Cross multiply
    1,681.07x = 2,520.53 × 1,103.27
  4. Step 4: Simplify right side
    1,681.07x = 2,780,819.62
  5. Step 5: Solve for x
    x = 2,780,819.62/1,681.07
  6. Step 6: Final answer
    x = 1,654.20

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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.