Home / 3,955.15-5,457.83-2,186.82

Finding the Fourth Proportional to 3,955.15, 5,457.83 and 2,186.82

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Solution

The fourth proportional to 3,955.15, 5,457.83 and 2,186.82 is: 3,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.15 : 5,457.83 = 2,186.82 : x
  2. Step 2: Convert to fraction form
    3,955.15/5,457.83 = 2,186.82/x
  3. Step 3: Cross multiply
    3,955.15x = 5,457.83 × 2,186.82
  4. Step 4: Simplify right side
    3,955.15x = 11,935,291.80
  5. Step 5: Solve for x
    x = 11,935,291.80/3,955.15
  6. Step 6: Final answer
    x = 3,017.66

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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.