Home / 3,581.40-5,378.16-2,197.50

Finding the Fourth Proportional to 3,581.40, 5,378.16 and 2,197.50

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Solution

The fourth proportional to 3,581.40, 5,378.16 and 2,197.50 is: 3,299.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.40 : 5,378.16 = 2,197.50 : x
  2. Step 2: Convert to fraction form
    3,581.40/5,378.16 = 2,197.50/x
  3. Step 3: Cross multiply
    3,581.40x = 5,378.16 × 2,197.50
  4. Step 4: Simplify right side
    3,581.40x = 11,818,506.60
  5. Step 5: Solve for x
    x = 11,818,506.60/3,581.40
  6. Step 6: Final answer
    x = 3,299.97

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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.