Home / 5,645.08-7,782.51-3,756.75

Finding the Fourth Proportional to 5,645.08, 7,782.51 and 3,756.75

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Solution

The fourth proportional to 5,645.08, 7,782.51 and 3,756.75 is: 5,179.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.08 : 7,782.51 = 3,756.75 : x
  2. Step 2: Convert to fraction form
    5,645.08/7,782.51 = 3,756.75/x
  3. Step 3: Cross multiply
    5,645.08x = 7,782.51 × 3,756.75
  4. Step 4: Simplify right side
    5,645.08x = 29,236,944.44
  5. Step 5: Solve for x
    x = 29,236,944.44/5,645.08
  6. Step 6: Final answer
    x = 5,179.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.