Home / 3,072.23-4,239.67-1,674.98

Finding the Fourth Proportional to 3,072.23, 4,239.67 and 1,674.98

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Solution

The fourth proportional to 3,072.23, 4,239.67 and 1,674.98 is: 2,311.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.23 : 4,239.67 = 1,674.98 : x
  2. Step 2: Convert to fraction form
    3,072.23/4,239.67 = 1,674.98/x
  3. Step 3: Cross multiply
    3,072.23x = 4,239.67 × 1,674.98
  4. Step 4: Simplify right side
    3,072.23x = 7,101,354.08
  5. Step 5: Solve for x
    x = 7,101,354.08/3,072.23
  6. Step 6: Final answer
    x = 2,311.47

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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.