Home / 2,256.05-3,113.23-1,261.13

Finding the Fourth Proportional to 2,256.05, 3,113.23 and 1,261.13

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Solution

The fourth proportional to 2,256.05, 3,113.23 and 1,261.13 is: 1,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.05 : 3,113.23 = 1,261.13 : x
  2. Step 2: Convert to fraction form
    2,256.05/3,113.23 = 1,261.13/x
  3. Step 3: Cross multiply
    2,256.05x = 3,113.23 × 1,261.13
  4. Step 4: Simplify right side
    2,256.05x = 3,926,187.75
  5. Step 5: Solve for x
    x = 3,926,187.75/2,256.05
  6. Step 6: Final answer
    x = 1,740.29

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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.