Home / 3,135.49-4,325.19-2,818.36

Finding the Fourth Proportional to 3,135.49, 4,325.19 and 2,818.36

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Solution

The fourth proportional to 3,135.49, 4,325.19 and 2,818.36 is: 3,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.49 : 4,325.19 = 2,818.36 : x
  2. Step 2: Convert to fraction form
    3,135.49/4,325.19 = 2,818.36/x
  3. Step 3: Cross multiply
    3,135.49x = 4,325.19 × 2,818.36
  4. Step 4: Simplify right side
    3,135.49x = 12,189,942.49
  5. Step 5: Solve for x
    x = 12,189,942.49/3,135.49
  6. Step 6: Final answer
    x = 3,887.73

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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.