Home / 6,109.56-9,165.49-2,778.05

Finding the Fourth Proportional to 6,109.56, 9,165.49 and 2,778.05

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Solution

The fourth proportional to 6,109.56, 9,165.49 and 2,778.05 is: 4,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,109.56 : 9,165.49 = 2,778.05 : x
  2. Step 2: Convert to fraction form
    6,109.56/9,165.49 = 2,778.05/x
  3. Step 3: Cross multiply
    6,109.56x = 9,165.49 × 2,778.05
  4. Step 4: Simplify right side
    6,109.56x = 25,462,205.46
  5. Step 5: Solve for x
    x = 25,462,205.46/6,109.56
  6. Step 6: Final answer
    x = 4,167.60

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1.5x scale

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.