Home / 1,603.12-2,400.92-1,344.78

Finding the Fourth Proportional to 1,603.12, 2,400.92 and 1,344.78

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Solution

The fourth proportional to 1,603.12, 2,400.92 and 1,344.78 is: 2,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.12 : 2,400.92 = 1,344.78 : x
  2. Step 2: Convert to fraction form
    1,603.12/2,400.92 = 1,344.78/x
  3. Step 3: Cross multiply
    1,603.12x = 2,400.92 × 1,344.78
  4. Step 4: Simplify right side
    1,603.12x = 3,228,696.98
  5. Step 5: Solve for x
    x = 3,228,696.98/1,603.12
  6. Step 6: Final answer
    x = 2,014.01

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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.