Home / 3,955.11-5,457.82-2,186.59

Finding the Fourth Proportional to 3,955.11, 5,457.82 and 2,186.59

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Solution

The fourth proportional to 3,955.11, 5,457.82 and 2,186.59 is: 3,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.11 : 5,457.82 = 2,186.59 : x
  2. Step 2: Convert to fraction form
    3,955.11/5,457.82 = 2,186.59/x
  3. Step 3: Cross multiply
    3,955.11x = 5,457.82 × 2,186.59
  4. Step 4: Simplify right side
    3,955.11x = 11,934,014.63
  5. Step 5: Solve for x
    x = 11,934,014.63/3,955.11
  6. Step 6: Final answer
    x = 3,017.37

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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.