Home / 5,622.46-8,438.28-3,980.60

Finding the Fourth Proportional to 5,622.46, 8,438.28 and 3,980.60

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Solution

The fourth proportional to 5,622.46, 8,438.28 and 3,980.60 is: 5,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.46 : 8,438.28 = 3,980.60 : x
  2. Step 2: Convert to fraction form
    5,622.46/8,438.28 = 3,980.60/x
  3. Step 3: Cross multiply
    5,622.46x = 8,438.28 × 3,980.60
  4. Step 4: Simplify right side
    5,622.46x = 33,589,417.37
  5. Step 5: Solve for x
    x = 33,589,417.37/5,622.46
  6. Step 6: Final answer
    x = 5,974.15

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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.