Home / 3,381.50-4,666.47-1,909.50

Finding the Fourth Proportional to 3,381.50, 4,666.47 and 1,909.50

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Solution

The fourth proportional to 3,381.50, 4,666.47 and 1,909.50 is: 2,635.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.50 : 4,666.47 = 1,909.50 : x
  2. Step 2: Convert to fraction form
    3,381.50/4,666.47 = 1,909.50/x
  3. Step 3: Cross multiply
    3,381.50x = 4,666.47 × 1,909.50
  4. Step 4: Simplify right side
    3,381.50x = 8,910,624.47
  5. Step 5: Solve for x
    x = 8,910,624.47/3,381.50
  6. Step 6: Final answer
    x = 2,635.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.