Home / 2,256.37-3,113.93-1,261.63

Finding the Fourth Proportional to 2,256.37, 3,113.93 and 1,261.63

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Solution

The fourth proportional to 2,256.37, 3,113.93 and 1,261.63 is: 1,741.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.37 : 3,113.93 = 1,261.63 : x
  2. Step 2: Convert to fraction form
    2,256.37/3,113.93 = 1,261.63/x
  3. Step 3: Cross multiply
    2,256.37x = 3,113.93 × 1,261.63
  4. Step 4: Simplify right side
    2,256.37x = 3,928,605.63
  5. Step 5: Solve for x
    x = 3,928,605.63/2,256.37
  6. Step 6: Final answer
    x = 1,741.12

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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.