Home / 5,321.41-7,981.98-1,623.49

Finding the Fourth Proportional to 5,321.41, 7,981.98 and 1,623.49

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Solution

The fourth proportional to 5,321.41, 7,981.98 and 1,623.49 is: 2,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.41 : 7,981.98 = 1,623.49 : x
  2. Step 2: Convert to fraction form
    5,321.41/7,981.98 = 1,623.49/x
  3. Step 3: Cross multiply
    5,321.41x = 7,981.98 × 1,623.49
  4. Step 4: Simplify right side
    5,321.41x = 12,958,664.71
  5. Step 5: Solve for x
    x = 12,958,664.71/5,321.41
  6. Step 6: Final answer
    x = 2,435.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.