Home / 2,153.25-2,971.02-1,268.73

Finding the Fourth Proportional to 2,153.25, 2,971.02 and 1,268.73

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Solution

The fourth proportional to 2,153.25, 2,971.02 and 1,268.73 is: 1,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.25 : 2,971.02 = 1,268.73 : x
  2. Step 2: Convert to fraction form
    2,153.25/2,971.02 = 1,268.73/x
  3. Step 3: Cross multiply
    2,153.25x = 2,971.02 × 1,268.73
  4. Step 4: Simplify right side
    2,153.25x = 3,769,422.20
  5. Step 5: Solve for x
    x = 3,769,422.20/2,153.25
  6. Step 6: Final answer
    x = 1,750.57

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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.