Home / 3,320.75-4,581.83-2,186.30

Finding the Fourth Proportional to 3,320.75, 4,581.83 and 2,186.30

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Solution

The fourth proportional to 3,320.75, 4,581.83 and 2,186.30 is: 3,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.75 : 4,581.83 = 2,186.30 : x
  2. Step 2: Convert to fraction form
    3,320.75/4,581.83 = 2,186.30/x
  3. Step 3: Cross multiply
    3,320.75x = 4,581.83 × 2,186.30
  4. Step 4: Simplify right side
    3,320.75x = 10,017,271.85
  5. Step 5: Solve for x
    x = 10,017,271.85/3,320.75
  6. Step 6: Final answer
    x = 3,016.57

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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.