Home / 3,318.16-4,969.28-1,928.56

Finding the Fourth Proportional to 3,318.16, 4,969.28 and 1,928.56

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Solution

The fourth proportional to 3,318.16, 4,969.28 and 1,928.56 is: 2,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.16 : 4,969.28 = 1,928.56 : x
  2. Step 2: Convert to fraction form
    3,318.16/4,969.28 = 1,928.56/x
  3. Step 3: Cross multiply
    3,318.16x = 4,969.28 × 1,928.56
  4. Step 4: Simplify right side
    3,318.16x = 9,583,554.64
  5. Step 5: Solve for x
    x = 9,583,554.64/3,318.16
  6. Step 6: Final answer
    x = 2,888.21

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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.