Home / 5,160.39-7,733.21-4,123.55

Finding the Fourth Proportional to 5,160.39, 7,733.21 and 4,123.55

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Solution

The fourth proportional to 5,160.39, 7,733.21 and 4,123.55 is: 6,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.39 : 7,733.21 = 4,123.55 : x
  2. Step 2: Convert to fraction form
    5,160.39/7,733.21 = 4,123.55/x
  3. Step 3: Cross multiply
    5,160.39x = 7,733.21 × 4,123.55
  4. Step 4: Simplify right side
    5,160.39x = 31,888,218.81
  5. Step 5: Solve for x
    x = 31,888,218.81/5,160.39
  6. Step 6: Final answer
    x = 6,179.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.