Home / 2,799.29-3,863.50-1,621.08

Finding the Fourth Proportional to 2,799.29, 3,863.50 and 1,621.08

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Solution

The fourth proportional to 2,799.29, 3,863.50 and 1,621.08 is: 2,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.29 : 3,863.50 = 1,621.08 : x
  2. Step 2: Convert to fraction form
    2,799.29/3,863.50 = 1,621.08/x
  3. Step 3: Cross multiply
    2,799.29x = 3,863.50 × 1,621.08
  4. Step 4: Simplify right side
    2,799.29x = 6,263,038.53
  5. Step 5: Solve for x
    x = 6,263,038.53/2,799.29
  6. Step 6: Final answer
    x = 2,237.36

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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.