Home / 3,156.95-4,739.79-1,771.17

Finding the Fourth Proportional to 3,156.95, 4,739.79 and 1,771.17

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Solution

The fourth proportional to 3,156.95, 4,739.79 and 1,771.17 is: 2,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.95 : 4,739.79 = 1,771.17 : x
  2. Step 2: Convert to fraction form
    3,156.95/4,739.79 = 1,771.17/x
  3. Step 3: Cross multiply
    3,156.95x = 4,739.79 × 1,771.17
  4. Step 4: Simplify right side
    3,156.95x = 8,394,957.74
  5. Step 5: Solve for x
    x = 8,394,957.74/3,156.95
  6. Step 6: Final answer
    x = 2,659.20

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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.