Home / 2,655.86-3,980.88-2,037.96

Finding the Fourth Proportional to 2,655.86, 3,980.88 and 2,037.96

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Solution

The fourth proportional to 2,655.86, 3,980.88 and 2,037.96 is: 3,054.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.86 : 3,980.88 = 2,037.96 : x
  2. Step 2: Convert to fraction form
    2,655.86/3,980.88 = 2,037.96/x
  3. Step 3: Cross multiply
    2,655.86x = 3,980.88 × 2,037.96
  4. Step 4: Simplify right side
    2,655.86x = 8,112,874.20
  5. Step 5: Solve for x
    x = 8,112,874.20/2,655.86
  6. Step 6: Final answer
    x = 3,054.71

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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.