Home / 5,182.21-7,151.19-2,943.79

Finding the Fourth Proportional to 5,182.21, 7,151.19 and 2,943.79

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Solution

The fourth proportional to 5,182.21, 7,151.19 and 2,943.79 is: 4,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.21 : 7,151.19 = 2,943.79 : x
  2. Step 2: Convert to fraction form
    5,182.21/7,151.19 = 2,943.79/x
  3. Step 3: Cross multiply
    5,182.21x = 7,151.19 × 2,943.79
  4. Step 4: Simplify right side
    5,182.21x = 21,051,601.61
  5. Step 5: Solve for x
    x = 21,051,601.61/5,182.21
  6. Step 6: Final answer
    x = 4,062.28

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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.