Home / 3,128.27-4,313.48-2,559.31

Finding the Fourth Proportional to 3,128.27, 4,313.48 and 2,559.31

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Solution

The fourth proportional to 3,128.27, 4,313.48 and 2,559.31 is: 3,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.27 : 4,313.48 = 2,559.31 : x
  2. Step 2: Convert to fraction form
    3,128.27/4,313.48 = 2,559.31/x
  3. Step 3: Cross multiply
    3,128.27x = 4,313.48 × 2,559.31
  4. Step 4: Simplify right side
    3,128.27x = 11,039,508.92
  5. Step 5: Solve for x
    x = 11,039,508.92/3,128.27
  6. Step 6: Final answer
    x = 3,528.96

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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.