Home / 3,285.36-4,928.58-1,436.40

Finding the Fourth Proportional to 3,285.36, 4,928.58 and 1,436.40

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Solution

The fourth proportional to 3,285.36, 4,928.58 and 1,436.40 is: 2,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.36 : 4,928.58 = 1,436.40 : x
  2. Step 2: Convert to fraction form
    3,285.36/4,928.58 = 1,436.40/x
  3. Step 3: Cross multiply
    3,285.36x = 4,928.58 × 1,436.40
  4. Step 4: Simplify right side
    3,285.36x = 7,079,412.31
  5. Step 5: Solve for x
    x = 7,079,412.31/3,285.36
  6. Step 6: Final answer
    x = 2,154.84

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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.