Home / 2,256.05-3,113.19-1,261.31

Finding the Fourth Proportional to 2,256.05, 3,113.19 and 1,261.31

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Solution

The fourth proportional to 2,256.05, 3,113.19 and 1,261.31 is: 1,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.05 : 3,113.19 = 1,261.31 : x
  2. Step 2: Convert to fraction form
    2,256.05/3,113.19 = 1,261.31/x
  3. Step 3: Cross multiply
    2,256.05x = 3,113.19 × 1,261.31
  4. Step 4: Simplify right side
    2,256.05x = 3,926,682.11
  5. Step 5: Solve for x
    x = 3,926,682.11/2,256.05
  6. Step 6: Final answer
    x = 1,740.52

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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.