Home / 4,909.11-7,359.53-1,989.46

Finding the Fourth Proportional to 4,909.11, 7,359.53 and 1,989.46

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Solution

The fourth proportional to 4,909.11, 7,359.53 and 1,989.46 is: 2,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.11 : 7,359.53 = 1,989.46 : x
  2. Step 2: Convert to fraction form
    4,909.11/7,359.53 = 1,989.46/x
  3. Step 3: Cross multiply
    4,909.11x = 7,359.53 × 1,989.46
  4. Step 4: Simplify right side
    4,909.11x = 14,641,489.81
  5. Step 5: Solve for x
    x = 14,641,489.81/4,909.11
  6. Step 6: Final answer
    x = 2,982.52

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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.