Home / 3,954.80-5,457.71-2,186.53

Finding the Fourth Proportional to 3,954.80, 5,457.71 and 2,186.53

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Solution

The fourth proportional to 3,954.80, 5,457.71 and 2,186.53 is: 3,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.80 : 5,457.71 = 2,186.53 : x
  2. Step 2: Convert to fraction form
    3,954.80/5,457.71 = 2,186.53/x
  3. Step 3: Cross multiply
    3,954.80x = 5,457.71 × 2,186.53
  4. Step 4: Simplify right side
    3,954.80x = 11,933,438.47
  5. Step 5: Solve for x
    x = 11,933,438.47/3,954.80
  6. Step 6: Final answer
    x = 3,017.45

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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.