Home / 1,663.26-2,491.56-1,004.78

Finding the Fourth Proportional to 1,663.26, 2,491.56 and 1,004.78

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Solution

The fourth proportional to 1,663.26, 2,491.56 and 1,004.78 is: 1,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.26 : 2,491.56 = 1,004.78 : x
  2. Step 2: Convert to fraction form
    1,663.26/2,491.56 = 1,004.78/x
  3. Step 3: Cross multiply
    1,663.26x = 2,491.56 × 1,004.78
  4. Step 4: Simplify right side
    1,663.26x = 2,503,457.20
  5. Step 5: Solve for x
    x = 2,503,457.20/1,663.26
  6. Step 6: Final answer
    x = 1,505.15

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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.