Home / 4,815.10-7,222.65-4,455.10

Finding the Fourth Proportional to 4,815.10, 7,222.65 and 4,455.10

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Solution

The fourth proportional to 4,815.10, 7,222.65 and 4,455.10 is: 6,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.10 : 7,222.65 = 4,455.10 : x
  2. Step 2: Convert to fraction form
    4,815.10/7,222.65 = 4,455.10/x
  3. Step 3: Cross multiply
    4,815.10x = 7,222.65 × 4,455.10
  4. Step 4: Simplify right side
    4,815.10x = 32,177,628.02
  5. Step 5: Solve for x
    x = 32,177,628.02/4,815.10
  6. Step 6: Final answer
    x = 6,682.65

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Similar ratio
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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.