Home / 2,772.29-3,826.41-1,763.80

Finding the Fourth Proportional to 2,772.29, 3,826.41 and 1,763.80

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Solution

The fourth proportional to 2,772.29, 3,826.41 and 1,763.80 is: 2,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.29 : 3,826.41 = 1,763.80 : x
  2. Step 2: Convert to fraction form
    2,772.29/3,826.41 = 1,763.80/x
  3. Step 3: Cross multiply
    2,772.29x = 3,826.41 × 1,763.80
  4. Step 4: Simplify right side
    2,772.29x = 6,749,031.42
  5. Step 5: Solve for x
    x = 6,749,031.42/2,772.29
  6. Step 6: Final answer
    x = 2,434.46

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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.