Home / 3,261.28-4,888.28-1,409.62

Finding the Fourth Proportional to 3,261.28, 4,888.28 and 1,409.62

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Solution

The fourth proportional to 3,261.28, 4,888.28 and 1,409.62 is: 2,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.28 : 4,888.28 = 1,409.62 : x
  2. Step 2: Convert to fraction form
    3,261.28/4,888.28 = 1,409.62/x
  3. Step 3: Cross multiply
    3,261.28x = 4,888.28 × 1,409.62
  4. Step 4: Simplify right side
    3,261.28x = 6,890,617.25
  5. Step 5: Solve for x
    x = 6,890,617.25/3,261.28
  6. Step 6: Final answer
    x = 2,112.86

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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.