Home / 2,800.26-3,863.52-1,621.29

Finding the Fourth Proportional to 2,800.26, 3,863.52 and 1,621.29

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Solution

The fourth proportional to 2,800.26, 3,863.52 and 1,621.29 is: 2,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.26 : 3,863.52 = 1,621.29 : x
  2. Step 2: Convert to fraction form
    2,800.26/3,863.52 = 1,621.29/x
  3. Step 3: Cross multiply
    2,800.26x = 3,863.52 × 1,621.29
  4. Step 4: Simplify right side
    2,800.26x = 6,263,886.34
  5. Step 5: Solve for x
    x = 6,263,886.34/2,800.26
  6. Step 6: Final answer
    x = 2,236.89

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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.