Home / 3,268.31-4,505.87-2,557.40

Finding the Fourth Proportional to 3,268.31, 4,505.87 and 2,557.40

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Solution

The fourth proportional to 3,268.31, 4,505.87 and 2,557.40 is: 3,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,268.31 : 4,505.87 = 2,557.40 : x
  2. Step 2: Convert to fraction form
    3,268.31/4,505.87 = 2,557.40/x
  3. Step 3: Cross multiply
    3,268.31x = 4,505.87 × 2,557.40
  4. Step 4: Simplify right side
    3,268.31x = 11,523,295.80
  5. Step 5: Solve for x
    x = 11,523,295.80/3,268.31
  6. Step 6: Final answer
    x = 3,525.77

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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.