Home / 2,772.93-3,826.11-1,778.08

Finding the Fourth Proportional to 2,772.93, 3,826.11 and 1,778.08

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Solution

The fourth proportional to 2,772.93, 3,826.11 and 1,778.08 is: 2,453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.93 : 3,826.11 = 1,778.08 : x
  2. Step 2: Convert to fraction form
    2,772.93/3,826.11 = 1,778.08/x
  3. Step 3: Cross multiply
    2,772.93x = 3,826.11 × 1,778.08
  4. Step 4: Simplify right side
    2,772.93x = 6,803,118.18
  5. Step 5: Solve for x
    x = 6,803,118.18/2,772.93
  6. Step 6: Final answer
    x = 2,453.40

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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.