Home / 5,146.40-7,101.96-3,021.55

Finding the Fourth Proportional to 5,146.40, 7,101.96 and 3,021.55

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Solution

The fourth proportional to 5,146.40, 7,101.96 and 3,021.55 is: 4,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.40 : 7,101.96 = 3,021.55 : x
  2. Step 2: Convert to fraction form
    5,146.40/7,101.96 = 3,021.55/x
  3. Step 3: Cross multiply
    5,146.40x = 7,101.96 × 3,021.55
  4. Step 4: Simplify right side
    5,146.40x = 21,458,927.24
  5. Step 5: Solve for x
    x = 21,458,927.24/5,146.40
  6. Step 6: Final answer
    x = 4,169.70

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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.