Home / 5,382.21-7,424.94-3,144.18

Finding the Fourth Proportional to 5,382.21, 7,424.94 and 3,144.18

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Solution

The fourth proportional to 5,382.21, 7,424.94 and 3,144.18 is: 4,337.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.21 : 7,424.94 = 3,144.18 : x
  2. Step 2: Convert to fraction form
    5,382.21/7,424.94 = 3,144.18/x
  3. Step 3: Cross multiply
    5,382.21x = 7,424.94 × 3,144.18
  4. Step 4: Simplify right side
    5,382.21x = 23,345,347.85
  5. Step 5: Solve for x
    x = 23,345,347.85/5,382.21
  6. Step 6: Final answer
    x = 4,337.50

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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.