Home / 5,177.20-7,765.93-1,890.29

Finding the Fourth Proportional to 5,177.20, 7,765.93 and 1,890.29

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Solution

The fourth proportional to 5,177.20, 7,765.93 and 1,890.29 is: 2,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.20 : 7,765.93 = 1,890.29 : x
  2. Step 2: Convert to fraction form
    5,177.20/7,765.93 = 1,890.29/x
  3. Step 3: Cross multiply
    5,177.20x = 7,765.93 × 1,890.29
  4. Step 4: Simplify right side
    5,177.20x = 14,679,859.82
  5. Step 5: Solve for x
    x = 14,679,859.82/5,177.20
  6. Step 6: Final answer
    x = 2,835.48

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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.