Home / 5,656.98-7,806.21-3,172.50

Finding the Fourth Proportional to 5,656.98, 7,806.21 and 3,172.50

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Solution

The fourth proportional to 5,656.98, 7,806.21 and 3,172.50 is: 4,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.98 : 7,806.21 = 3,172.50 : x
  2. Step 2: Convert to fraction form
    5,656.98/7,806.21 = 3,172.50/x
  3. Step 3: Cross multiply
    5,656.98x = 7,806.21 × 3,172.50
  4. Step 4: Simplify right side
    5,656.98x = 24,765,201.23
  5. Step 5: Solve for x
    x = 24,765,201.23/5,656.98
  6. Step 6: Final answer
    x = 4,377.81

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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.