Home / 2,201.69-3,038.43-1,207.10

Finding the Fourth Proportional to 2,201.69, 3,038.43 and 1,207.10

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Solution

The fourth proportional to 2,201.69, 3,038.43 and 1,207.10 is: 1,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.69 : 3,038.43 = 1,207.10 : x
  2. Step 2: Convert to fraction form
    2,201.69/3,038.43 = 1,207.10/x
  3. Step 3: Cross multiply
    2,201.69x = 3,038.43 × 1,207.10
  4. Step 4: Simplify right side
    2,201.69x = 3,667,688.85
  5. Step 5: Solve for x
    x = 3,667,688.85/2,201.69
  6. Step 6: Final answer
    x = 1,665.85

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1.5x scale

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.