Home / 2,875.04-3,965.76-2,168

Finding the Fourth Proportional to 2,875.04, 3,965.76 and 2,168

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Solution

The fourth proportional to 2,875.04, 3,965.76 and 2,168 is: 2,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.04 : 3,965.76 = 2,168 : x
  2. Step 2: Convert to fraction form
    2,875.04/3,965.76 = 2,168/x
  3. Step 3: Cross multiply
    2,875.04x = 3,965.76 × 2,168
  4. Step 4: Simplify right side
    2,875.04x = 8,597,767.68
  5. Step 5: Solve for x
    x = 8,597,767.68/2,875.04
  6. Step 6: Final answer
    x = 2,990.49

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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.