Home / 3,969.05-5,476.17-3,127.14

Finding the Fourth Proportional to 3,969.05, 5,476.17 and 3,127.14

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Solution

The fourth proportional to 3,969.05, 5,476.17 and 3,127.14 is: 4,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.05 : 5,476.17 = 3,127.14 : x
  2. Step 2: Convert to fraction form
    3,969.05/5,476.17 = 3,127.14/x
  3. Step 3: Cross multiply
    3,969.05x = 5,476.17 × 3,127.14
  4. Step 4: Simplify right side
    3,969.05x = 17,124,750.25
  5. Step 5: Solve for x
    x = 17,124,750.25/3,969.05
  6. Step 6: Final answer
    x = 4,314.58

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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.