Home / 2,328.36-3,213.16-1,280.44

Finding the Fourth Proportional to 2,328.36, 3,213.16 and 1,280.44

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Solution

The fourth proportional to 2,328.36, 3,213.16 and 1,280.44 is: 1,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.36 : 3,213.16 = 1,280.44 : x
  2. Step 2: Convert to fraction form
    2,328.36/3,213.16 = 1,280.44/x
  3. Step 3: Cross multiply
    2,328.36x = 3,213.16 × 1,280.44
  4. Step 4: Simplify right side
    2,328.36x = 4,114,258.59
  5. Step 5: Solve for x
    x = 4,114,258.59/2,328.36
  6. Step 6: Final answer
    x = 1,767.02

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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.