Home / 1,344.02-2,015.98-419.58

Finding the Fourth Proportional to 1,344.02, 2,015.98 and 419.58

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Solution

The fourth proportional to 1,344.02, 2,015.98 and 419.58 is: 629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344.02 : 2,015.98 = 419.58 : x
  2. Step 2: Convert to fraction form
    1,344.02/2,015.98 = 419.58/x
  3. Step 3: Cross multiply
    1,344.02x = 2,015.98 × 419.58
  4. Step 4: Simplify right side
    1,344.02x = 845,863.84
  5. Step 5: Solve for x
    x = 845,863.84/1,344.02
  6. Step 6: Final answer
    x = 629.36

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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.