Home / 3,955.08-5,457.96-2,186.80

Finding the Fourth Proportional to 3,955.08, 5,457.96 and 2,186.80

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Solution

The fourth proportional to 3,955.08, 5,457.96 and 2,186.80 is: 3,017.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.08 : 5,457.96 = 2,186.80 : x
  2. Step 2: Convert to fraction form
    3,955.08/5,457.96 = 2,186.80/x
  3. Step 3: Cross multiply
    3,955.08x = 5,457.96 × 2,186.80
  4. Step 4: Simplify right side
    3,955.08x = 11,935,466.93
  5. Step 5: Solve for x
    x = 11,935,466.93/3,955.08
  6. Step 6: Final answer
    x = 3,017.76

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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.