Home / 3,955.46-5,458.32-2,186.96

Finding the Fourth Proportional to 3,955.46, 5,458.32 and 2,186.96

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Solution

The fourth proportional to 3,955.46, 5,458.32 and 2,186.96 is: 3,017.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.46 : 5,458.32 = 2,186.96 : x
  2. Step 2: Convert to fraction form
    3,955.46/5,458.32 = 2,186.96/x
  3. Step 3: Cross multiply
    3,955.46x = 5,458.32 × 2,186.96
  4. Step 4: Simplify right side
    3,955.46x = 11,937,127.51
  5. Step 5: Solve for x
    x = 11,937,127.51/3,955.46
  6. Step 6: Final answer
    x = 3,017.89

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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.