Home / 3,288.28-4,928.09-1,557.40

Finding the Fourth Proportional to 3,288.28, 4,928.09 and 1,557.40

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Solution

The fourth proportional to 3,288.28, 4,928.09 and 1,557.40 is: 2,334.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.28 : 4,928.09 = 1,557.40 : x
  2. Step 2: Convert to fraction form
    3,288.28/4,928.09 = 1,557.40/x
  3. Step 3: Cross multiply
    3,288.28x = 4,928.09 × 1,557.40
  4. Step 4: Simplify right side
    3,288.28x = 7,674,982.73
  5. Step 5: Solve for x
    x = 7,674,982.73/3,288.28
  6. Step 6: Final answer
    x = 2,334.05

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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.