Home / 1,901.43-2,849.55-1,206.85

Finding the Fourth Proportional to 1,901.43, 2,849.55 and 1,206.85

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Solution

The fourth proportional to 1,901.43, 2,849.55 and 1,206.85 is: 1,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.43 : 2,849.55 = 1,206.85 : x
  2. Step 2: Convert to fraction form
    1,901.43/2,849.55 = 1,206.85/x
  3. Step 3: Cross multiply
    1,901.43x = 2,849.55 × 1,206.85
  4. Step 4: Simplify right side
    1,901.43x = 3,438,973.38
  5. Step 5: Solve for x
    x = 3,438,973.38/1,901.43
  6. Step 6: Final answer
    x = 1,808.62

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1.5x scale

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.