Home / 5,177.36-7,143.65-3,581.43

Finding the Fourth Proportional to 5,177.36, 7,143.65 and 3,581.43

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Solution

The fourth proportional to 5,177.36, 7,143.65 and 3,581.43 is: 4,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.36 : 7,143.65 = 3,581.43 : x
  2. Step 2: Convert to fraction form
    5,177.36/7,143.65 = 3,581.43/x
  3. Step 3: Cross multiply
    5,177.36x = 7,143.65 × 3,581.43
  4. Step 4: Simplify right side
    5,177.36x = 25,584,464.51
  5. Step 5: Solve for x
    x = 25,584,464.51/5,177.36
  6. Step 6: Final answer
    x = 4,941.61

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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.