Home / 2,201.99-3,038.78-1,207.31

Finding the Fourth Proportional to 2,201.99, 3,038.78 and 1,207.31

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Solution

The fourth proportional to 2,201.99, 3,038.78 and 1,207.31 is: 1,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.99 : 3,038.78 = 1,207.31 : x
  2. Step 2: Convert to fraction form
    2,201.99/3,038.78 = 1,207.31/x
  3. Step 3: Cross multiply
    2,201.99x = 3,038.78 × 1,207.31
  4. Step 4: Simplify right side
    2,201.99x = 3,668,749.48
  5. Step 5: Solve for x
    x = 3,668,749.48/2,201.99
  6. Step 6: Final answer
    x = 1,666.11

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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.