Home / 5,090.91-7,636.37-1,628.43

Finding the Fourth Proportional to 5,090.91, 7,636.37 and 1,628.43

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Solution

The fourth proportional to 5,090.91, 7,636.37 and 1,628.43 is: 2,442.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.91 : 7,636.37 = 1,628.43 : x
  2. Step 2: Convert to fraction form
    5,090.91/7,636.37 = 1,628.43/x
  3. Step 3: Cross multiply
    5,090.91x = 7,636.37 × 1,628.43
  4. Step 4: Simplify right side
    5,090.91x = 12,435,285.86
  5. Step 5: Solve for x
    x = 12,435,285.86/5,090.91
  6. Step 6: Final answer
    x = 2,442.65

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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.