Home / 2,928.45-4,355.01-2,836.18

Finding the Fourth Proportional to 2,928.45, 4,355.01 and 2,836.18

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Solution

The fourth proportional to 2,928.45, 4,355.01 and 2,836.18 is: 4,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.45 : 4,355.01 = 2,836.18 : x
  2. Step 2: Convert to fraction form
    2,928.45/4,355.01 = 2,836.18/x
  3. Step 3: Cross multiply
    2,928.45x = 4,355.01 × 2,836.18
  4. Step 4: Simplify right side
    2,928.45x = 12,351,592.26
  5. Step 5: Solve for x
    x = 12,351,592.26/2,928.45
  6. Step 6: Final answer
    x = 4,217.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.