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Finding the Fourth Proportional to 3,597.80, 5,400.74 and 2,785.86

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Solution

The fourth proportional to 3,597.80, 5,400.74 and 2,785.86 is: 4,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,597.80 : 5,400.74 = 2,785.86 : x
  2. Step 2: Convert to fraction form
    3,597.80/5,400.74 = 2,785.86/x
  3. Step 3: Cross multiply
    3,597.80x = 5,400.74 × 2,785.86
  4. Step 4: Simplify right side
    3,597.80x = 15,045,712.50
  5. Step 5: Solve for x
    x = 15,045,712.50/3,597.80
  6. Step 6: Final answer
    x = 4,181.93

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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.