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Finding the Fourth Proportional to 2,751.95, 4,129.95 and 1,713.47

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Solution

The fourth proportional to 2,751.95, 4,129.95 and 1,713.47 is: 2,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.95 : 4,129.95 = 1,713.47 : x
  2. Step 2: Convert to fraction form
    2,751.95/4,129.95 = 1,713.47/x
  3. Step 3: Cross multiply
    2,751.95x = 4,129.95 × 1,713.47
  4. Step 4: Simplify right side
    2,751.95x = 7,076,524.78
  5. Step 5: Solve for x
    x = 7,076,524.78/2,751.95
  6. Step 6: Final answer
    x = 2,571.46

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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.