Home / 4,815.12-7,222.74-1,352.40

Finding the Fourth Proportional to 4,815.12, 7,222.74 and 1,352.40

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Solution

The fourth proportional to 4,815.12, 7,222.74 and 1,352.40 is: 2,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.12 : 7,222.74 = 1,352.40 : x
  2. Step 2: Convert to fraction form
    4,815.12/7,222.74 = 1,352.40/x
  3. Step 3: Cross multiply
    4,815.12x = 7,222.74 × 1,352.40
  4. Step 4: Simplify right side
    4,815.12x = 9,768,033.58
  5. Step 5: Solve for x
    x = 9,768,033.58/4,815.12
  6. Step 6: Final answer
    x = 2,028.62

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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.