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Finding the Fourth Proportional to 2,048.36, 3,072.94 and 714.28

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Solution

The fourth proportional to 2,048.36, 3,072.94 and 714.28 is: 1,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.36 : 3,072.94 = 714.28 : x
  2. Step 2: Convert to fraction form
    2,048.36/3,072.94 = 714.28/x
  3. Step 3: Cross multiply
    2,048.36x = 3,072.94 × 714.28
  4. Step 4: Simplify right side
    2,048.36x = 2,194,939.58
  5. Step 5: Solve for x
    x = 2,194,939.58/2,048.36
  6. Step 6: Final answer
    x = 1,071.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.