Home / 3,980.84-5,493.64-2,302.28

Finding the Fourth Proportional to 3,980.84, 5,493.64 and 2,302.28

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Solution

The fourth proportional to 3,980.84, 5,493.64 and 2,302.28 is: 3,177.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.84 : 5,493.64 = 2,302.28 : x
  2. Step 2: Convert to fraction form
    3,980.84/5,493.64 = 2,302.28/x
  3. Step 3: Cross multiply
    3,980.84x = 5,493.64 × 2,302.28
  4. Step 4: Simplify right side
    3,980.84x = 12,647,897.50
  5. Step 5: Solve for x
    x = 12,647,897.50/3,980.84
  6. Step 6: Final answer
    x = 3,177.19

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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.