Home / 5,090.87-7,630.74-2,622.40

Finding the Fourth Proportional to 5,090.87, 7,630.74 and 2,622.40

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Solution

The fourth proportional to 5,090.87, 7,630.74 and 2,622.40 is: 3,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.87 : 7,630.74 = 2,622.40 : x
  2. Step 2: Convert to fraction form
    5,090.87/7,630.74 = 2,622.40/x
  3. Step 3: Cross multiply
    5,090.87x = 7,630.74 × 2,622.40
  4. Step 4: Simplify right side
    5,090.87x = 20,010,833.50
  5. Step 5: Solve for x
    x = 20,010,833.50/5,090.87
  6. Step 6: Final answer
    x = 3,930.73

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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.