Home / 2,201.94-3,038.64-1,207.20

Finding the Fourth Proportional to 2,201.94, 3,038.64 and 1,207.20

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Solution

The fourth proportional to 2,201.94, 3,038.64 and 1,207.20 is: 1,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.94 : 3,038.64 = 1,207.20 : x
  2. Step 2: Convert to fraction form
    2,201.94/3,038.64 = 1,207.20/x
  3. Step 3: Cross multiply
    2,201.94x = 3,038.64 × 1,207.20
  4. Step 4: Simplify right side
    2,201.94x = 3,668,246.21
  5. Step 5: Solve for x
    x = 3,668,246.21/2,201.94
  6. Step 6: Final answer
    x = 1,665.92

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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.