Home / 2,800.11-3,863.25-1,803.63

Finding the Fourth Proportional to 2,800.11, 3,863.25 and 1,803.63

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Solution

The fourth proportional to 2,800.11, 3,863.25 and 1,803.63 is: 2,488.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.11 : 3,863.25 = 1,803.63 : x
  2. Step 2: Convert to fraction form
    2,800.11/3,863.25 = 1,803.63/x
  3. Step 3: Cross multiply
    2,800.11x = 3,863.25 × 1,803.63
  4. Step 4: Simplify right side
    2,800.11x = 6,967,873.60
  5. Step 5: Solve for x
    x = 6,967,873.60/2,800.11
  6. Step 6: Final answer
    x = 2,488.43

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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.