Home / 3,151.47-4,723.56-1,853.85

Finding the Fourth Proportional to 3,151.47, 4,723.56 and 1,853.85

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Solution

The fourth proportional to 3,151.47, 4,723.56 and 1,853.85 is: 2,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.47 : 4,723.56 = 1,853.85 : x
  2. Step 2: Convert to fraction form
    3,151.47/4,723.56 = 1,853.85/x
  3. Step 3: Cross multiply
    3,151.47x = 4,723.56 × 1,853.85
  4. Step 4: Simplify right side
    3,151.47x = 8,756,771.71
  5. Step 5: Solve for x
    x = 8,756,771.71/3,151.47
  6. Step 6: Final answer
    x = 2,778.63

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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.