Home / 2,133.28-3,200.88-1,157.92

Finding the Fourth Proportional to 2,133.28, 3,200.88 and 1,157.92

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Solution

The fourth proportional to 2,133.28, 3,200.88 and 1,157.92 is: 1,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.28 : 3,200.88 = 1,157.92 : x
  2. Step 2: Convert to fraction form
    2,133.28/3,200.88 = 1,157.92/x
  3. Step 3: Cross multiply
    2,133.28x = 3,200.88 × 1,157.92
  4. Step 4: Simplify right side
    2,133.28x = 3,706,362.97
  5. Step 5: Solve for x
    x = 3,706,362.97/2,133.28
  6. Step 6: Final answer
    x = 1,737.40

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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.