Home / 3,109.36-4,663.35-1,028.87

Finding the Fourth Proportional to 3,109.36, 4,663.35 and 1,028.87

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Solution

The fourth proportional to 3,109.36, 4,663.35 and 1,028.87 is: 1,543.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.36 : 4,663.35 = 1,028.87 : x
  2. Step 2: Convert to fraction form
    3,109.36/4,663.35 = 1,028.87/x
  3. Step 3: Cross multiply
    3,109.36x = 4,663.35 × 1,028.87
  4. Step 4: Simplify right side
    3,109.36x = 4,797,980.91
  5. Step 5: Solve for x
    x = 4,797,980.91/3,109.36
  6. Step 6: Final answer
    x = 1,543.08

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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.