Home / 3,955.32-5,457.86-2,186.69

Finding the Fourth Proportional to 3,955.32, 5,457.86 and 2,186.69

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Solution

The fourth proportional to 3,955.32, 5,457.86 and 2,186.69 is: 3,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.32 : 5,457.86 = 2,186.69 : x
  2. Step 2: Convert to fraction form
    3,955.32/5,457.86 = 2,186.69/x
  3. Step 3: Cross multiply
    3,955.32x = 5,457.86 × 2,186.69
  4. Step 4: Simplify right side
    3,955.32x = 11,934,609.66
  5. Step 5: Solve for x
    x = 11,934,609.66/3,955.32
  6. Step 6: Final answer
    x = 3,017.36

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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.