Home / 1,328.72-1,829.81-1,324.67

Finding the Fourth Proportional to 1,328.72, 1,829.81 and 1,324.67

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Solution

The fourth proportional to 1,328.72, 1,829.81 and 1,324.67 is: 1,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328.72 : 1,829.81 = 1,324.67 : x
  2. Step 2: Convert to fraction form
    1,328.72/1,829.81 = 1,324.67/x
  3. Step 3: Cross multiply
    1,328.72x = 1,829.81 × 1,324.67
  4. Step 4: Simplify right side
    1,328.72x = 2,423,887.79
  5. Step 5: Solve for x
    x = 2,423,887.79/1,328.72
  6. Step 6: Final answer
    x = 1,824.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.