Home / 2,987.03-4,119.30-2,027.99

Finding the Fourth Proportional to 2,987.03, 4,119.30 and 2,027.99

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Solution

The fourth proportional to 2,987.03, 4,119.30 and 2,027.99 is: 2,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.03 : 4,119.30 = 2,027.99 : x
  2. Step 2: Convert to fraction form
    2,987.03/4,119.30 = 2,027.99/x
  3. Step 3: Cross multiply
    2,987.03x = 4,119.30 × 2,027.99
  4. Step 4: Simplify right side
    2,987.03x = 8,353,899.21
  5. Step 5: Solve for x
    x = 8,353,899.21/2,987.03
  6. Step 6: Final answer
    x = 2,796.72

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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.