Home / 3,960.09-5,465.88-2,703.78

Finding the Fourth Proportional to 3,960.09, 5,465.88 and 2,703.78

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Solution

The fourth proportional to 3,960.09, 5,465.88 and 2,703.78 is: 3,731.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.09 : 5,465.88 = 2,703.78 : x
  2. Step 2: Convert to fraction form
    3,960.09/5,465.88 = 2,703.78/x
  3. Step 3: Cross multiply
    3,960.09x = 5,465.88 × 2,703.78
  4. Step 4: Simplify right side
    3,960.09x = 14,778,537.03
  5. Step 5: Solve for x
    x = 14,778,537.03/3,960.09
  6. Step 6: Final answer
    x = 3,731.87

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1.5x scale

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.