Home / 2,151.27-2,968.44-1,254.78

Finding the Fourth Proportional to 2,151.27, 2,968.44 and 1,254.78

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Solution

The fourth proportional to 2,151.27, 2,968.44 and 1,254.78 is: 1,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.27 : 2,968.44 = 1,254.78 : x
  2. Step 2: Convert to fraction form
    2,151.27/2,968.44 = 1,254.78/x
  3. Step 3: Cross multiply
    2,151.27x = 2,968.44 × 1,254.78
  4. Step 4: Simplify right side
    2,151.27x = 3,724,739.14
  5. Step 5: Solve for x
    x = 3,724,739.14/2,151.27
  6. Step 6: Final answer
    x = 1,731.41

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1.5x scale

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.