Home / 4,815.98-7,221.80-2,217.50

Finding the Fourth Proportional to 4,815.98, 7,221.80 and 2,217.50

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Solution

The fourth proportional to 4,815.98, 7,221.80 and 2,217.50 is: 3,325.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.98 : 7,221.80 = 2,217.50 : x
  2. Step 2: Convert to fraction form
    4,815.98/7,221.80 = 2,217.50/x
  3. Step 3: Cross multiply
    4,815.98x = 7,221.80 × 2,217.50
  4. Step 4: Simplify right side
    4,815.98x = 16,014,341.50
  5. Step 5: Solve for x
    x = 16,014,341.50/4,815.98
  6. Step 6: Final answer
    x = 3,325.25

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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.