Home / 3,179.53-4,389.29-2,119.06

Finding the Fourth Proportional to 3,179.53, 4,389.29 and 2,119.06

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Solution

The fourth proportional to 3,179.53, 4,389.29 and 2,119.06 is: 2,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.53 : 4,389.29 = 2,119.06 : x
  2. Step 2: Convert to fraction form
    3,179.53/4,389.29 = 2,119.06/x
  3. Step 3: Cross multiply
    3,179.53x = 4,389.29 × 2,119.06
  4. Step 4: Simplify right side
    3,179.53x = 9,301,168.87
  5. Step 5: Solve for x
    x = 9,301,168.87/3,179.53
  6. Step 6: Final answer
    x = 2,925.33

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1.5x scale

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.