Home / 3,957.45-5,460.75-2,188.95

Finding the Fourth Proportional to 3,957.45, 5,460.75 and 2,188.95

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Solution

The fourth proportional to 3,957.45, 5,460.75 and 2,188.95 is: 3,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.45 : 5,460.75 = 2,188.95 : x
  2. Step 2: Convert to fraction form
    3,957.45/5,460.75 = 2,188.95/x
  3. Step 3: Cross multiply
    3,957.45x = 5,460.75 × 2,188.95
  4. Step 4: Simplify right side
    3,957.45x = 11,953,308.71
  5. Step 5: Solve for x
    x = 11,953,308.71/3,957.45
  6. Step 6: Final answer
    x = 3,020.46

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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.