Home / 5,417.51-8,128.07-3,662.43

Finding the Fourth Proportional to 5,417.51, 8,128.07 and 3,662.43

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Solution

The fourth proportional to 5,417.51, 8,128.07 and 3,662.43 is: 5,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.51 : 8,128.07 = 3,662.43 : x
  2. Step 2: Convert to fraction form
    5,417.51/8,128.07 = 3,662.43/x
  3. Step 3: Cross multiply
    5,417.51x = 8,128.07 × 3,662.43
  4. Step 4: Simplify right side
    5,417.51x = 29,768,469.10
  5. Step 5: Solve for x
    x = 29,768,469.10/5,417.51
  6. Step 6: Final answer
    x = 5,494.87

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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.