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Finding the Fourth Proportional to 3,047.63, 4,571.44 and 739.13

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Solution

The fourth proportional to 3,047.63, 4,571.44 and 739.13 is: 1,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.63 : 4,571.44 = 739.13 : x
  2. Step 2: Convert to fraction form
    3,047.63/4,571.44 = 739.13/x
  3. Step 3: Cross multiply
    3,047.63x = 4,571.44 × 739.13
  4. Step 4: Simplify right side
    3,047.63x = 3,378,863.74
  5. Step 5: Solve for x
    x = 3,378,863.74/3,047.63
  6. Step 6: Final answer
    x = 1,108.69

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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.