Home / 3,109.98-4,660.60-2,645.92

Finding the Fourth Proportional to 3,109.98, 4,660.60 and 2,645.92

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Solution

The fourth proportional to 3,109.98, 4,660.60 and 2,645.92 is: 3,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.98 : 4,660.60 = 2,645.92 : x
  2. Step 2: Convert to fraction form
    3,109.98/4,660.60 = 2,645.92/x
  3. Step 3: Cross multiply
    3,109.98x = 4,660.60 × 2,645.92
  4. Step 4: Simplify right side
    3,109.98x = 12,331,574.75
  5. Step 5: Solve for x
    x = 12,331,574.75/3,109.98
  6. Step 6: Final answer
    x = 3,965.16

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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.