Home / 3,809.28-5,283.74-3,708.18

Finding the Fourth Proportional to 3,809.28, 5,283.74 and 3,708.18

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Solution

The fourth proportional to 3,809.28, 5,283.74 and 3,708.18 is: 5,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.28 : 5,283.74 = 3,708.18 : x
  2. Step 2: Convert to fraction form
    3,809.28/5,283.74 = 3,708.18/x
  3. Step 3: Cross multiply
    3,809.28x = 5,283.74 × 3,708.18
  4. Step 4: Simplify right side
    3,809.28x = 19,593,040.45
  5. Step 5: Solve for x
    x = 19,593,040.45/3,809.28
  6. Step 6: Final answer
    x = 5,143.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.