Home / 1,493.16-2,239.80-519.36

Finding the Fourth Proportional to 1,493.16, 2,239.80 and 519.36

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Solution

The fourth proportional to 1,493.16, 2,239.80 and 519.36 is: 779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.16 : 2,239.80 = 519.36 : x
  2. Step 2: Convert to fraction form
    1,493.16/2,239.80 = 519.36/x
  3. Step 3: Cross multiply
    1,493.16x = 2,239.80 × 519.36
  4. Step 4: Simplify right side
    1,493.16x = 1,163,262.53
  5. Step 5: Solve for x
    x = 1,163,262.53/1,493.16
  6. Step 6: Final answer
    x = 779.06

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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.