Home / 2,766.32-3,813.12-2,176.08

Finding the Fourth Proportional to 2,766.32, 3,813.12 and 2,176.08

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Solution

The fourth proportional to 2,766.32, 3,813.12 and 2,176.08 is: 2,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.32 : 3,813.12 = 2,176.08 : x
  2. Step 2: Convert to fraction form
    2,766.32/3,813.12 = 2,176.08/x
  3. Step 3: Cross multiply
    2,766.32x = 3,813.12 × 2,176.08
  4. Step 4: Simplify right side
    2,766.32x = 8,297,654.17
  5. Step 5: Solve for x
    x = 8,297,654.17/2,766.32
  6. Step 6: Final answer
    x = 2,999.53

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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.