Home / 2,575.22-3,859.86-1,185.65

Finding the Fourth Proportional to 2,575.22, 3,859.86 and 1,185.65

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Solution

The fourth proportional to 2,575.22, 3,859.86 and 1,185.65 is: 1,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.22 : 3,859.86 = 1,185.65 : x
  2. Step 2: Convert to fraction form
    2,575.22/3,859.86 = 1,185.65/x
  3. Step 3: Cross multiply
    2,575.22x = 3,859.86 × 1,185.65
  4. Step 4: Simplify right side
    2,575.22x = 4,576,443.01
  5. Step 5: Solve for x
    x = 4,576,443.01/2,575.22
  6. Step 6: Final answer
    x = 1,777.11

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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.