Home / 5,129.04-7,078.06-2,771.18

Finding the Fourth Proportional to 5,129.04, 7,078.06 and 2,771.18

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Solution

The fourth proportional to 5,129.04, 7,078.06 and 2,771.18 is: 3,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.04 : 7,078.06 = 2,771.18 : x
  2. Step 2: Convert to fraction form
    5,129.04/7,078.06 = 2,771.18/x
  3. Step 3: Cross multiply
    5,129.04x = 7,078.06 × 2,771.18
  4. Step 4: Simplify right side
    5,129.04x = 19,614,578.31
  5. Step 5: Solve for x
    x = 19,614,578.31/5,129.04
  6. Step 6: Final answer
    x = 3,824.22

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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.