Home / 3,709.23-5,118.78-2,385.19

Finding the Fourth Proportional to 3,709.23, 5,118.78 and 2,385.19

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Solution

The fourth proportional to 3,709.23, 5,118.78 and 2,385.19 is: 3,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.23 : 5,118.78 = 2,385.19 : x
  2. Step 2: Convert to fraction form
    3,709.23/5,118.78 = 2,385.19/x
  3. Step 3: Cross multiply
    3,709.23x = 5,118.78 × 2,385.19
  4. Step 4: Simplify right side
    3,709.23x = 12,209,262.87
  5. Step 5: Solve for x
    x = 12,209,262.87/3,709.23
  6. Step 6: Final answer
    x = 3,291.59

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Half 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.