Home / 5,090.92-7,636.26-1,628.20

Finding the Fourth Proportional to 5,090.92, 7,636.26 and 1,628.20

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Solution

The fourth proportional to 5,090.92, 7,636.26 and 1,628.20 is: 2,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.92 : 7,636.26 = 1,628.20 : x
  2. Step 2: Convert to fraction form
    5,090.92/7,636.26 = 1,628.20/x
  3. Step 3: Cross multiply
    5,090.92x = 7,636.26 × 1,628.20
  4. Step 4: Simplify right side
    5,090.92x = 12,433,358.53
  5. Step 5: Solve for x
    x = 12,433,358.53/5,090.92
  6. Step 6: Final answer
    x = 2,442.26

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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.