Home / 2,659.19-3,988.74-1,100.03

Finding the Fourth Proportional to 2,659.19, 3,988.74 and 1,100.03

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Solution

The fourth proportional to 2,659.19, 3,988.74 and 1,100.03 is: 1,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.19 : 3,988.74 = 1,100.03 : x
  2. Step 2: Convert to fraction form
    2,659.19/3,988.74 = 1,100.03/x
  3. Step 3: Cross multiply
    2,659.19x = 3,988.74 × 1,100.03
  4. Step 4: Simplify right side
    2,659.19x = 4,387,733.66
  5. Step 5: Solve for x
    x = 4,387,733.66/2,659.19
  6. Step 6: Final answer
    x = 1,650.03

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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.