Home / 4,191.28-5,786.50-2,776.18

Finding the Fourth Proportional to 4,191.28, 5,786.50 and 2,776.18

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Solution

The fourth proportional to 4,191.28, 5,786.50 and 2,776.18 is: 3,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.28 : 5,786.50 = 2,776.18 : x
  2. Step 2: Convert to fraction form
    4,191.28/5,786.50 = 2,776.18/x
  3. Step 3: Cross multiply
    4,191.28x = 5,786.50 × 2,776.18
  4. Step 4: Simplify right side
    4,191.28x = 16,064,336.14
  5. Step 5: Solve for x
    x = 16,064,336.14/4,191.28
  6. Step 6: Final answer
    x = 3,832.80

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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.