Home / 5,245.11-7,235.86-3,119.43

Finding the Fourth Proportional to 5,245.11, 7,235.86 and 3,119.43

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Solution

The fourth proportional to 5,245.11, 7,235.86 and 3,119.43 is: 4,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.11 : 7,235.86 = 3,119.43 : x
  2. Step 2: Convert to fraction form
    5,245.11/7,235.86 = 3,119.43/x
  3. Step 3: Cross multiply
    5,245.11x = 7,235.86 × 3,119.43
  4. Step 4: Simplify right side
    5,245.11x = 22,571,758.76
  5. Step 5: Solve for x
    x = 22,571,758.76/5,245.11
  6. Step 6: Final answer
    x = 4,303.39

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Double scale
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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.