Home / 4,709.21-6,494.19-3,115.13

Finding the Fourth Proportional to 4,709.21, 6,494.19 and 3,115.13

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Solution

The fourth proportional to 4,709.21, 6,494.19 and 3,115.13 is: 4,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.21 : 6,494.19 = 3,115.13 : x
  2. Step 2: Convert to fraction form
    4,709.21/6,494.19 = 3,115.13/x
  3. Step 3: Cross multiply
    4,709.21x = 6,494.19 × 3,115.13
  4. Step 4: Simplify right side
    4,709.21x = 20,230,246.09
  5. Step 5: Solve for x
    x = 20,230,246.09/4,709.21
  6. Step 6: Final answer
    x = 4,295.89

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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.