Home / 5,643.10-7,786.97-3,125.08

Finding the Fourth Proportional to 5,643.10, 7,786.97 and 3,125.08

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Solution

The fourth proportional to 5,643.10, 7,786.97 and 3,125.08 is: 4,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.10 : 7,786.97 = 3,125.08 : x
  2. Step 2: Convert to fraction form
    5,643.10/7,786.97 = 3,125.08/x
  3. Step 3: Cross multiply
    5,643.10x = 7,786.97 × 3,125.08
  4. Step 4: Simplify right side
    5,643.10x = 24,334,910.03
  5. Step 5: Solve for x
    x = 24,334,910.03/5,643.10
  6. Step 6: Final answer
    x = 4,312.33

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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.