Home / 7,164.85-9,887.49-4,021.03

Finding the Fourth Proportional to 7,164.85, 9,887.49 and 4,021.03

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Solution

The fourth proportional to 7,164.85, 9,887.49 and 4,021.03 is: 5,549.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.85 : 9,887.49 = 4,021.03 : x
  2. Step 2: Convert to fraction form
    7,164.85/9,887.49 = 4,021.03/x
  3. Step 3: Cross multiply
    7,164.85x = 9,887.49 × 4,021.03
  4. Step 4: Simplify right side
    7,164.85x = 39,757,893.91
  5. Step 5: Solve for x
    x = 39,757,893.91/7,164.85
  6. Step 6: Final answer
    x = 5,549.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.