Home / 5,440.23-8,155.80-2,520.63

Finding the Fourth Proportional to 5,440.23, 8,155.80 and 2,520.63

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Solution

The fourth proportional to 5,440.23, 8,155.80 and 2,520.63 is: 3,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.23 : 8,155.80 = 2,520.63 : x
  2. Step 2: Convert to fraction form
    5,440.23/8,155.80 = 2,520.63/x
  3. Step 3: Cross multiply
    5,440.23x = 8,155.80 × 2,520.63
  4. Step 4: Simplify right side
    5,440.23x = 20,557,754.15
  5. Step 5: Solve for x
    x = 20,557,754.15/5,440.23
  6. Step 6: Final answer
    x = 3,778.84

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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.