Home / 3,077.29-4,245.82-1,817.79

Finding the Fourth Proportional to 3,077.29, 4,245.82 and 1,817.79

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Solution

The fourth proportional to 3,077.29, 4,245.82 and 1,817.79 is: 2,508.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.29 : 4,245.82 = 1,817.79 : x
  2. Step 2: Convert to fraction form
    3,077.29/4,245.82 = 1,817.79/x
  3. Step 3: Cross multiply
    3,077.29x = 4,245.82 × 1,817.79
  4. Step 4: Simplify right side
    3,077.29x = 7,718,012.55
  5. Step 5: Solve for x
    x = 7,718,012.55/3,077.29
  6. Step 6: Final answer
    x = 2,508.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.