Home / 2,861.14-3,946.73-1,798.49

Finding the Fourth Proportional to 2,861.14, 3,946.73 and 1,798.49

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Solution

The fourth proportional to 2,861.14, 3,946.73 and 1,798.49 is: 2,480.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.14 : 3,946.73 = 1,798.49 : x
  2. Step 2: Convert to fraction form
    2,861.14/3,946.73 = 1,798.49/x
  3. Step 3: Cross multiply
    2,861.14x = 3,946.73 × 1,798.49
  4. Step 4: Simplify right side
    2,861.14x = 7,098,139.20
  5. Step 5: Solve for x
    x = 7,098,139.20/2,861.14
  6. Step 6: Final answer
    x = 2,480.88

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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.