Home / 4,817.20-7,223.52-2,220.40

Finding the Fourth Proportional to 4,817.20, 7,223.52 and 2,220.40

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Solution

The fourth proportional to 4,817.20, 7,223.52 and 2,220.40 is: 3,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.20 : 7,223.52 = 2,220.40 : x
  2. Step 2: Convert to fraction form
    4,817.20/7,223.52 = 2,220.40/x
  3. Step 3: Cross multiply
    4,817.20x = 7,223.52 × 2,220.40
  4. Step 4: Simplify right side
    4,817.20x = 16,039,103.81
  5. Step 5: Solve for x
    x = 16,039,103.81/4,817.20
  6. Step 6: Final answer
    x = 3,329.55

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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.