Home / 2,780.08-4,165.96-2,575.05

Finding the Fourth Proportional to 2,780.08, 4,165.96 and 2,575.05

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Solution

The fourth proportional to 2,780.08, 4,165.96 and 2,575.05 is: 3,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.08 : 4,165.96 = 2,575.05 : x
  2. Step 2: Convert to fraction form
    2,780.08/4,165.96 = 2,575.05/x
  3. Step 3: Cross multiply
    2,780.08x = 4,165.96 × 2,575.05
  4. Step 4: Simplify right side
    2,780.08x = 10,727,542.89
  5. Step 5: Solve for x
    x = 10,727,542.89/2,780.08
  6. Step 6: Final answer
    x = 3,858.72

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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.