Home / 1,499.28-2,247.48-729.36

Finding the Fourth Proportional to 1,499.28, 2,247.48 and 729.36

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Solution

The fourth proportional to 1,499.28, 2,247.48 and 729.36 is: 1,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.28 : 2,247.48 = 729.36 : x
  2. Step 2: Convert to fraction form
    1,499.28/2,247.48 = 729.36/x
  3. Step 3: Cross multiply
    1,499.28x = 2,247.48 × 729.36
  4. Step 4: Simplify right side
    1,499.28x = 1,639,222.01
  5. Step 5: Solve for x
    x = 1,639,222.01/1,499.28
  6. Step 6: Final answer
    x = 1,093.34

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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.