Home / 4,629.58-6,939.76-2,987.28

Finding the Fourth Proportional to 4,629.58, 6,939.76 and 2,987.28

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Solution

The fourth proportional to 4,629.58, 6,939.76 and 2,987.28 is: 4,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.58 : 6,939.76 = 2,987.28 : x
  2. Step 2: Convert to fraction form
    4,629.58/6,939.76 = 2,987.28/x
  3. Step 3: Cross multiply
    4,629.58x = 6,939.76 × 2,987.28
  4. Step 4: Simplify right side
    4,629.58x = 20,730,991.32
  5. Step 5: Solve for x
    x = 20,730,991.32/4,629.58
  6. Step 6: Final answer
    x = 4,477.94

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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.