Home / 1,039.03-1,559.21-491.24

Finding the Fourth Proportional to 1,039.03, 1,559.21 and 491.24

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Solution

The fourth proportional to 1,039.03, 1,559.21 and 491.24 is: 737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.03 : 1,559.21 = 491.24 : x
  2. Step 2: Convert to fraction form
    1,039.03/1,559.21 = 491.24/x
  3. Step 3: Cross multiply
    1,039.03x = 1,559.21 × 491.24
  4. Step 4: Simplify right side
    1,039.03x = 765,947.76
  5. Step 5: Solve for x
    x = 765,947.76/1,039.03
  6. Step 6: Final answer
    x = 737.18

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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.