Home / 5,101.28-7,645.44-2,790.08

Finding the Fourth Proportional to 5,101.28, 7,645.44 and 2,790.08

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Solution

The fourth proportional to 5,101.28, 7,645.44 and 2,790.08 is: 4,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.28 : 7,645.44 = 2,790.08 : x
  2. Step 2: Convert to fraction form
    5,101.28/7,645.44 = 2,790.08/x
  3. Step 3: Cross multiply
    5,101.28x = 7,645.44 × 2,790.08
  4. Step 4: Simplify right side
    5,101.28x = 21,331,389.24
  5. Step 5: Solve for x
    x = 21,331,389.24/5,101.28
  6. Step 6: Final answer
    x = 4,181.58

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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.