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Finding the Fourth Proportional to 5,653.80, 8,481.06 and 1,760.76

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Solution

The fourth proportional to 5,653.80, 8,481.06 and 1,760.76 is: 2,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.80 : 8,481.06 = 1,760.76 : x
  2. Step 2: Convert to fraction form
    5,653.80/8,481.06 = 1,760.76/x
  3. Step 3: Cross multiply
    5,653.80x = 8,481.06 × 1,760.76
  4. Step 4: Simplify right side
    5,653.80x = 14,933,111.21
  5. Step 5: Solve for x
    x = 14,933,111.21/5,653.80
  6. Step 6: Final answer
    x = 2,641.25

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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.