Home / 5,676.30-8,513.91-1,780.74

Finding the Fourth Proportional to 5,676.30, 8,513.91 and 1,780.74

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Solution

The fourth proportional to 5,676.30, 8,513.91 and 1,780.74 is: 2,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.30 : 8,513.91 = 1,780.74 : x
  2. Step 2: Convert to fraction form
    5,676.30/8,513.91 = 1,780.74/x
  3. Step 3: Cross multiply
    5,676.30x = 8,513.91 × 1,780.74
  4. Step 4: Simplify right side
    5,676.30x = 15,161,060.09
  5. Step 5: Solve for x
    x = 15,161,060.09/5,676.30
  6. Step 6: Final answer
    x = 2,670.94

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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.