Home / 4,815.78-7,223.40-2,217.30

Finding the Fourth Proportional to 4,815.78, 7,223.40 and 2,217.30

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Solution

The fourth proportional to 4,815.78, 7,223.40 and 2,217.30 is: 3,325.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.78 : 7,223.40 = 2,217.30 : x
  2. Step 2: Convert to fraction form
    4,815.78/7,223.40 = 2,217.30/x
  3. Step 3: Cross multiply
    4,815.78x = 7,223.40 × 2,217.30
  4. Step 4: Simplify right side
    4,815.78x = 16,016,444.82
  5. Step 5: Solve for x
    x = 16,016,444.82/4,815.78
  6. Step 6: Final answer
    x = 3,325.83

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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.