Home / 2,746.21-3,785.33-2,147.64

Finding the Fourth Proportional to 2,746.21, 3,785.33 and 2,147.64

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Solution

The fourth proportional to 2,746.21, 3,785.33 and 2,147.64 is: 2,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,746.21 : 3,785.33 = 2,147.64 : x
  2. Step 2: Convert to fraction form
    2,746.21/3,785.33 = 2,147.64/x
  3. Step 3: Cross multiply
    2,746.21x = 3,785.33 × 2,147.64
  4. Step 4: Simplify right side
    2,746.21x = 8,129,531.49
  5. Step 5: Solve for x
    x = 8,129,531.49/2,746.21
  6. Step 6: Final answer
    x = 2,960.28

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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.