Home / 3,048.81-4,207.31-1,722.47

Finding the Fourth Proportional to 3,048.81, 4,207.31 and 1,722.47

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Solution

The fourth proportional to 3,048.81, 4,207.31 and 1,722.47 is: 2,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,048.81 : 4,207.31 = 1,722.47 : x
  2. Step 2: Convert to fraction form
    3,048.81/4,207.31 = 1,722.47/x
  3. Step 3: Cross multiply
    3,048.81x = 4,207.31 × 1,722.47
  4. Step 4: Simplify right side
    3,048.81x = 7,246,942.07
  5. Step 5: Solve for x
    x = 7,246,942.07/3,048.81
  6. Step 6: Final answer
    x = 2,376.98

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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.