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Finding the Fourth Proportional to 2,284.48, 3,426.73 and 553.11

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Solution

The fourth proportional to 2,284.48, 3,426.73 and 553.11 is: 829.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.48 : 3,426.73 = 553.11 : x
  2. Step 2: Convert to fraction form
    2,284.48/3,426.73 = 553.11/x
  3. Step 3: Cross multiply
    2,284.48x = 3,426.73 × 553.11
  4. Step 4: Simplify right side
    2,284.48x = 1,895,358.63
  5. Step 5: Solve for x
    x = 1,895,358.63/2,284.48
  6. Step 6: Final answer
    x = 829.67

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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.