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Finding the Fourth Proportional to 5,653.76, 8,480.54 and 2,321.30

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Solution

The fourth proportional to 5,653.76, 8,480.54 and 2,321.30 is: 3,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.76 : 8,480.54 = 2,321.30 : x
  2. Step 2: Convert to fraction form
    5,653.76/8,480.54 = 2,321.30/x
  3. Step 3: Cross multiply
    5,653.76x = 8,480.54 × 2,321.30
  4. Step 4: Simplify right side
    5,653.76x = 19,685,877.50
  5. Step 5: Solve for x
    x = 19,685,877.50/5,653.76
  6. Step 6: Final answer
    x = 3,481.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.