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Finding the Fourth Proportional to 5,672.09, 8,508.59 and 1,776.49

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Solution

The fourth proportional to 5,672.09, 8,508.59 and 1,776.49 is: 2,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.09 : 8,508.59 = 1,776.49 : x
  2. Step 2: Convert to fraction form
    5,672.09/8,508.59 = 1,776.49/x
  3. Step 3: Cross multiply
    5,672.09x = 8,508.59 × 1,776.49
  4. Step 4: Simplify right side
    5,672.09x = 15,115,425.05
  5. Step 5: Solve for x
    x = 15,115,425.05/5,672.09
  6. Step 6: Final answer
    x = 2,664.88

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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.