Home / 2,871.54-3,960.52-1,927.04

Finding the Fourth Proportional to 2,871.54, 3,960.52 and 1,927.04

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Solution

The fourth proportional to 2,871.54, 3,960.52 and 1,927.04 is: 2,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.54 : 3,960.52 = 1,927.04 : x
  2. Step 2: Convert to fraction form
    2,871.54/3,960.52 = 1,927.04/x
  3. Step 3: Cross multiply
    2,871.54x = 3,960.52 × 1,927.04
  4. Step 4: Simplify right side
    2,871.54x = 7,632,080.46
  5. Step 5: Solve for x
    x = 7,632,080.46/2,871.54
  6. Step 6: Final answer
    x = 2,657.84

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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.