Home / 5,729.45-8,591.46-2,221.10

Finding the Fourth Proportional to 5,729.45, 8,591.46 and 2,221.10

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Solution

The fourth proportional to 5,729.45, 8,591.46 and 2,221.10 is: 3,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729.45 : 8,591.46 = 2,221.10 : x
  2. Step 2: Convert to fraction form
    5,729.45/8,591.46 = 2,221.10/x
  3. Step 3: Cross multiply
    5,729.45x = 8,591.46 × 2,221.10
  4. Step 4: Simplify right side
    5,729.45x = 19,082,491.81
  5. Step 5: Solve for x
    x = 19,082,491.81/5,729.45
  6. Step 6: Final answer
    x = 3,330.60

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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.