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Finding the Fourth Proportional to 1,549.92, 2,323.26 and 817.68

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Solution

The fourth proportional to 1,549.92, 2,323.26 and 817.68 is: 1,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.92 : 2,323.26 = 817.68 : x
  2. Step 2: Convert to fraction form
    1,549.92/2,323.26 = 817.68/x
  3. Step 3: Cross multiply
    1,549.92x = 2,323.26 × 817.68
  4. Step 4: Simplify right side
    1,549.92x = 1,899,683.24
  5. Step 5: Solve for x
    x = 1,899,683.24/1,549.92
  6. Step 6: Final answer
    x = 1,225.67

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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.