Home / 3,971.14-5,473.86-3,130.48

Finding the Fourth Proportional to 3,971.14, 5,473.86 and 3,130.48

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Solution

The fourth proportional to 3,971.14, 5,473.86 and 3,130.48 is: 4,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.14 : 5,473.86 = 3,130.48 : x
  2. Step 2: Convert to fraction form
    3,971.14/5,473.86 = 3,130.48/x
  3. Step 3: Cross multiply
    3,971.14x = 5,473.86 × 3,130.48
  4. Step 4: Simplify right side
    3,971.14x = 17,135,809.25
  5. Step 5: Solve for x
    x = 17,135,809.25/3,971.14
  6. Step 6: Final answer
    x = 4,315.09

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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.