Home / 3,958.98-5,457.69-2,776.38

Finding the Fourth Proportional to 3,958.98, 5,457.69 and 2,776.38

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Solution

The fourth proportional to 3,958.98, 5,457.69 and 2,776.38 is: 3,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.98 : 5,457.69 = 2,776.38 : x
  2. Step 2: Convert to fraction form
    3,958.98/5,457.69 = 2,776.38/x
  3. Step 3: Cross multiply
    3,958.98x = 5,457.69 × 2,776.38
  4. Step 4: Simplify right side
    3,958.98x = 15,152,621.36
  5. Step 5: Solve for x
    x = 15,152,621.36/3,958.98
  6. Step 6: Final answer
    x = 3,827.41

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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.