Home / 5,135.76-7,085.26-3,794.56

Finding the Fourth Proportional to 5,135.76, 7,085.26 and 3,794.56

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Solution

The fourth proportional to 5,135.76, 7,085.26 and 3,794.56 is: 5,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.76 : 7,085.26 = 3,794.56 : x
  2. Step 2: Convert to fraction form
    5,135.76/7,085.26 = 3,794.56/x
  3. Step 3: Cross multiply
    5,135.76x = 7,085.26 × 3,794.56
  4. Step 4: Simplify right side
    5,135.76x = 26,885,444.19
  5. Step 5: Solve for x
    x = 26,885,444.19/5,135.76
  6. Step 6: Final answer
    x = 5,234.95

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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.