Home / 3,987.35-5,502.01-2,308.65

Finding the Fourth Proportional to 3,987.35, 5,502.01 and 2,308.65

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Solution

The fourth proportional to 3,987.35, 5,502.01 and 2,308.65 is: 3,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.35 : 5,502.01 = 2,308.65 : x
  2. Step 2: Convert to fraction form
    3,987.35/5,502.01 = 2,308.65/x
  3. Step 3: Cross multiply
    3,987.35x = 5,502.01 × 2,308.65
  4. Step 4: Simplify right side
    3,987.35x = 12,702,234.00
  5. Step 5: Solve for x
    x = 12,702,234.00/3,987.35
  6. Step 6: Final answer
    x = 3,185.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.