Home / 5,175.33-7,140.72-3,021.54

Finding the Fourth Proportional to 5,175.33, 7,140.72 and 3,021.54

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Solution

The fourth proportional to 5,175.33, 7,140.72 and 3,021.54 is: 4,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.33 : 7,140.72 = 3,021.54 : x
  2. Step 2: Convert to fraction form
    5,175.33/7,140.72 = 3,021.54/x
  3. Step 3: Cross multiply
    5,175.33x = 7,140.72 × 3,021.54
  4. Step 4: Simplify right side
    5,175.33x = 21,575,955.66
  5. Step 5: Solve for x
    x = 21,575,955.66/5,175.33
  6. Step 6: Final answer
    x = 4,169.00

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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.