Home / 2,256.09-3,113.47-1,261.54

Finding the Fourth Proportional to 2,256.09, 3,113.47 and 1,261.54

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Solution

The fourth proportional to 2,256.09, 3,113.47 and 1,261.54 is: 1,740.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.09 : 3,113.47 = 1,261.54 : x
  2. Step 2: Convert to fraction form
    2,256.09/3,113.47 = 1,261.54/x
  3. Step 3: Cross multiply
    2,256.09x = 3,113.47 × 1,261.54
  4. Step 4: Simplify right side
    2,256.09x = 3,927,766.94
  5. Step 5: Solve for x
    x = 3,927,766.94/2,256.09
  6. Step 6: Final answer
    x = 1,740.96

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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.