Home / 2,781.03-4,160.78-1,777.07

Finding the Fourth Proportional to 2,781.03, 4,160.78 and 1,777.07

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Solution

The fourth proportional to 2,781.03, 4,160.78 and 1,777.07 is: 2,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.03 : 4,160.78 = 1,777.07 : x
  2. Step 2: Convert to fraction form
    2,781.03/4,160.78 = 1,777.07/x
  3. Step 3: Cross multiply
    2,781.03x = 4,160.78 × 1,777.07
  4. Step 4: Simplify right side
    2,781.03x = 7,393,967.63
  5. Step 5: Solve for x
    x = 7,393,967.63/2,781.03
  6. Step 6: Final answer
    x = 2,658.72

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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.