Home / 1,619.20-2,429.70-1,003.24

Finding the Fourth Proportional to 1,619.20, 2,429.70 and 1,003.24

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Solution

The fourth proportional to 1,619.20, 2,429.70 and 1,003.24 is: 1,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.20 : 2,429.70 = 1,003.24 : x
  2. Step 2: Convert to fraction form
    1,619.20/2,429.70 = 1,003.24/x
  3. Step 3: Cross multiply
    1,619.20x = 2,429.70 × 1,003.24
  4. Step 4: Simplify right side
    1,619.20x = 2,437,572.23
  5. Step 5: Solve for x
    x = 2,437,572.23/1,619.20
  6. Step 6: Final answer
    x = 1,505.42

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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.