Home / 4,663.09-6,987.92-2,688.64

Finding the Fourth Proportional to 4,663.09, 6,987.92 and 2,688.64

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Solution

The fourth proportional to 4,663.09, 6,987.92 and 2,688.64 is: 4,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,663.09 : 6,987.92 = 2,688.64 : x
  2. Step 2: Convert to fraction form
    4,663.09/6,987.92 = 2,688.64/x
  3. Step 3: Cross multiply
    4,663.09x = 6,987.92 × 2,688.64
  4. Step 4: Simplify right side
    4,663.09x = 18,788,024.75
  5. Step 5: Solve for x
    x = 18,788,024.75/4,663.09
  6. Step 6: Final answer
    x = 4,029.09

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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.