Home / 3,209.18-4,813.95-900.50

Finding the Fourth Proportional to 3,209.18, 4,813.95 and 900.50

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Solution

The fourth proportional to 3,209.18, 4,813.95 and 900.50 is: 1,350.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.18 : 4,813.95 = 900.50 : x
  2. Step 2: Convert to fraction form
    3,209.18/4,813.95 = 900.50/x
  3. Step 3: Cross multiply
    3,209.18x = 4,813.95 × 900.50
  4. Step 4: Simplify right side
    3,209.18x = 4,334,961.98
  5. Step 5: Solve for x
    x = 4,334,961.98/3,209.18
  6. Step 6: Final answer
    x = 1,350.80

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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.