Home / 2,761.04-4,133.40-2,119.28

Finding the Fourth Proportional to 2,761.04, 4,133.40 and 2,119.28

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Solution

The fourth proportional to 2,761.04, 4,133.40 and 2,119.28 is: 3,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.04 : 4,133.40 = 2,119.28 : x
  2. Step 2: Convert to fraction form
    2,761.04/4,133.40 = 2,119.28/x
  3. Step 3: Cross multiply
    2,761.04x = 4,133.40 × 2,119.28
  4. Step 4: Simplify right side
    2,761.04x = 8,759,831.95
  5. Step 5: Solve for x
    x = 8,759,831.95/2,761.04
  6. Step 6: Final answer
    x = 3,172.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.