Home / 2,406.39-3,611.85-1,237.21

Finding the Fourth Proportional to 2,406.39, 3,611.85 and 1,237.21

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Solution

The fourth proportional to 2,406.39, 3,611.85 and 1,237.21 is: 1,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.39 : 3,611.85 = 1,237.21 : x
  2. Step 2: Convert to fraction form
    2,406.39/3,611.85 = 1,237.21/x
  3. Step 3: Cross multiply
    2,406.39x = 3,611.85 × 1,237.21
  4. Step 4: Simplify right side
    2,406.39x = 4,468,603.27
  5. Step 5: Solve for x
    x = 4,468,603.27/2,406.39
  6. Step 6: Final answer
    x = 1,856.98

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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.