Home / 3,782.10-5,219.75-2,289.98

Finding the Fourth Proportional to 3,782.10, 5,219.75 and 2,289.98

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Solution

The fourth proportional to 3,782.10, 5,219.75 and 2,289.98 is: 3,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.10 : 5,219.75 = 2,289.98 : x
  2. Step 2: Convert to fraction form
    3,782.10/5,219.75 = 2,289.98/x
  3. Step 3: Cross multiply
    3,782.10x = 5,219.75 × 2,289.98
  4. Step 4: Simplify right side
    3,782.10x = 11,953,123.11
  5. Step 5: Solve for x
    x = 11,953,123.11/3,782.10
  6. Step 6: Final answer
    x = 3,160.45

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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.