Home / 8,880.81-13,320.90-2,217.36

Finding the Fourth Proportional to 8,880.81, 13,320.90 and 2,217.36

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Solution

The fourth proportional to 8,880.81, 13,320.90 and 2,217.36 is: 3,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.81 : 13,320.90 = 2,217.36 : x
  2. Step 2: Convert to fraction form
    8,880.81/13,320.90 = 2,217.36/x
  3. Step 3: Cross multiply
    8,880.81x = 13,320.90 × 2,217.36
  4. Step 4: Simplify right side
    8,880.81x = 29,537,230.82
  5. Step 5: Solve for x
    x = 29,537,230.82/8,880.81
  6. Step 6: Final answer
    x = 3,325.96

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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.