Home / 2,008.35-3,015.09-1,987.65

Finding the Fourth Proportional to 2,008.35, 3,015.09 and 1,987.65

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Solution

The fourth proportional to 2,008.35, 3,015.09 and 1,987.65 is: 2,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.35 : 3,015.09 = 1,987.65 : x
  2. Step 2: Convert to fraction form
    2,008.35/3,015.09 = 1,987.65/x
  3. Step 3: Cross multiply
    2,008.35x = 3,015.09 × 1,987.65
  4. Step 4: Simplify right side
    2,008.35x = 5,992,943.64
  5. Step 5: Solve for x
    x = 5,992,943.64/2,008.35
  6. Step 6: Final answer
    x = 2,984.01

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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.