Home / 3,021.04-4,172.28-2,079.28

Finding the Fourth Proportional to 3,021.04, 4,172.28 and 2,079.28

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Solution

The fourth proportional to 3,021.04, 4,172.28 and 2,079.28 is: 2,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.04 : 4,172.28 = 2,079.28 : x
  2. Step 2: Convert to fraction form
    3,021.04/4,172.28 = 2,079.28/x
  3. Step 3: Cross multiply
    3,021.04x = 4,172.28 × 2,079.28
  4. Step 4: Simplify right side
    3,021.04x = 8,675,338.36
  5. Step 5: Solve for x
    x = 8,675,338.36/3,021.04
  6. Step 6: Final answer
    x = 2,871.64

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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.