Home / 5,420.30-8,131.11-1,524.71

Finding the Fourth Proportional to 5,420.30, 8,131.11 and 1,524.71

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Solution

The fourth proportional to 5,420.30, 8,131.11 and 1,524.71 is: 2,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.30 : 8,131.11 = 1,524.71 : x
  2. Step 2: Convert to fraction form
    5,420.30/8,131.11 = 1,524.71/x
  3. Step 3: Cross multiply
    5,420.30x = 8,131.11 × 1,524.71
  4. Step 4: Simplify right side
    5,420.30x = 12,397,544.07
  5. Step 5: Solve for x
    x = 12,397,544.07/5,420.30
  6. Step 6: Final answer
    x = 2,287.25

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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.