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Finding the Fourth Proportional to 1,714.09, 2,571.08 and 939.01

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Solution

The fourth proportional to 1,714.09, 2,571.08 and 939.01 is: 1,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.09 : 2,571.08 = 939.01 : x
  2. Step 2: Convert to fraction form
    1,714.09/2,571.08 = 939.01/x
  3. Step 3: Cross multiply
    1,714.09x = 2,571.08 × 939.01
  4. Step 4: Simplify right side
    1,714.09x = 2,414,256.64
  5. Step 5: Solve for x
    x = 2,414,256.64/1,714.09
  6. Step 6: Final answer
    x = 1,408.48

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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.