Home / 2,256.78-3,114.26-1,312.44

Finding the Fourth Proportional to 2,256.78, 3,114.26 and 1,312.44

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Solution

The fourth proportional to 2,256.78, 3,114.26 and 1,312.44 is: 1,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.78 : 3,114.26 = 1,312.44 : x
  2. Step 2: Convert to fraction form
    2,256.78/3,114.26 = 1,312.44/x
  3. Step 3: Cross multiply
    2,256.78x = 3,114.26 × 1,312.44
  4. Step 4: Simplify right side
    2,256.78x = 4,087,279.39
  5. Step 5: Solve for x
    x = 4,087,279.39/2,256.78
  6. Step 6: Final answer
    x = 1,811.11

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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.