Home / 3,328.79-4,983.47-3,121.84

Finding the Fourth Proportional to 3,328.79, 4,983.47 and 3,121.84

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Solution

The fourth proportional to 3,328.79, 4,983.47 and 3,121.84 is: 4,673.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.79 : 4,983.47 = 3,121.84 : x
  2. Step 2: Convert to fraction form
    3,328.79/4,983.47 = 3,121.84/x
  3. Step 3: Cross multiply
    3,328.79x = 4,983.47 × 3,121.84
  4. Step 4: Simplify right side
    3,328.79x = 15,557,555.46
  5. Step 5: Solve for x
    x = 15,557,555.46/3,328.79
  6. Step 6: Final answer
    x = 4,673.64

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1.5x scale

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.