Home / 3,109.10-4,669.05-3,011.90

Finding the Fourth Proportional to 3,109.10, 4,669.05 and 3,011.90

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Solution

The fourth proportional to 3,109.10, 4,669.05 and 3,011.90 is: 4,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.10 : 4,669.05 = 3,011.90 : x
  2. Step 2: Convert to fraction form
    3,109.10/4,669.05 = 3,011.90/x
  3. Step 3: Cross multiply
    3,109.10x = 4,669.05 × 3,011.90
  4. Step 4: Simplify right side
    3,109.10x = 14,062,711.70
  5. Step 5: Solve for x
    x = 14,062,711.70/3,109.10
  6. Step 6: Final answer
    x = 4,523.08

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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.