Home / 2,129.03-3,192.75-742.01

Finding the Fourth Proportional to 2,129.03, 3,192.75 and 742.01

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Solution

The fourth proportional to 2,129.03, 3,192.75 and 742.01 is: 1,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.03 : 3,192.75 = 742.01 : x
  2. Step 2: Convert to fraction form
    2,129.03/3,192.75 = 742.01/x
  3. Step 3: Cross multiply
    2,129.03x = 3,192.75 × 742.01
  4. Step 4: Simplify right side
    2,129.03x = 2,369,052.43
  5. Step 5: Solve for x
    x = 2,369,052.43/2,129.03
  6. Step 6: Final answer
    x = 1,112.74

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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.