Home / 3,072.78-4,240.23-1,814.22

Finding the Fourth Proportional to 3,072.78, 4,240.23 and 1,814.22

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Solution

The fourth proportional to 3,072.78, 4,240.23 and 1,814.22 is: 2,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.78 : 4,240.23 = 1,814.22 : x
  2. Step 2: Convert to fraction form
    3,072.78/4,240.23 = 1,814.22/x
  3. Step 3: Cross multiply
    3,072.78x = 4,240.23 × 1,814.22
  4. Step 4: Simplify right side
    3,072.78x = 7,692,710.07
  5. Step 5: Solve for x
    x = 7,692,710.07/3,072.78
  6. Step 6: Final answer
    x = 2,503.50

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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.