Home / 3,957.36-5,461.15-2,188.95

Finding the Fourth Proportional to 3,957.36, 5,461.15 and 2,188.95

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Solution

The fourth proportional to 3,957.36, 5,461.15 and 2,188.95 is: 3,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.36 : 5,461.15 = 2,188.95 : x
  2. Step 2: Convert to fraction form
    3,957.36/5,461.15 = 2,188.95/x
  3. Step 3: Cross multiply
    3,957.36x = 5,461.15 × 2,188.95
  4. Step 4: Simplify right side
    3,957.36x = 11,954,184.29
  5. Step 5: Solve for x
    x = 11,954,184.29/3,957.36
  6. Step 6: Final answer
    x = 3,020.75

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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.