Home / 7,164.09-9,887.34-4,020.25

Finding the Fourth Proportional to 7,164.09, 9,887.34 and 4,020.25

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Solution

The fourth proportional to 7,164.09, 9,887.34 and 4,020.25 is: 5,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.09 : 9,887.34 = 4,020.25 : x
  2. Step 2: Convert to fraction form
    7,164.09/9,887.34 = 4,020.25/x
  3. Step 3: Cross multiply
    7,164.09x = 9,887.34 × 4,020.25
  4. Step 4: Simplify right side
    7,164.09x = 39,749,578.64
  5. Step 5: Solve for x
    x = 39,749,578.64/7,164.09
  6. Step 6: Final answer
    x = 5,548.45

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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.