Home / 5,120.93-7,675.16-2,775.37

Finding the Fourth Proportional to 5,120.93, 7,675.16 and 2,775.37

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Solution

The fourth proportional to 5,120.93, 7,675.16 and 2,775.37 is: 4,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.93 : 7,675.16 = 2,775.37 : x
  2. Step 2: Convert to fraction form
    5,120.93/7,675.16 = 2,775.37/x
  3. Step 3: Cross multiply
    5,120.93x = 7,675.16 × 2,775.37
  4. Step 4: Simplify right side
    5,120.93x = 21,301,408.81
  5. Step 5: Solve for x
    x = 21,301,408.81/5,120.93
  6. Step 6: Final answer
    x = 4,159.68

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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.