Home / 2,784.18-3,843.66-1,776.90

Finding the Fourth Proportional to 2,784.18, 3,843.66 and 1,776.90

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Solution

The fourth proportional to 2,784.18, 3,843.66 and 1,776.90 is: 2,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.18 : 3,843.66 = 1,776.90 : x
  2. Step 2: Convert to fraction form
    2,784.18/3,843.66 = 1,776.90/x
  3. Step 3: Cross multiply
    2,784.18x = 3,843.66 × 1,776.90
  4. Step 4: Simplify right side
    2,784.18x = 6,829,799.45
  5. Step 5: Solve for x
    x = 6,829,799.45/2,784.18
  6. Step 6: Final answer
    x = 2,453.07

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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.