Home / 3,409.14-4,704.30-1,917.12

Finding the Fourth Proportional to 3,409.14, 4,704.30 and 1,917.12

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Solution

The fourth proportional to 3,409.14, 4,704.30 and 1,917.12 is: 2,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.14 : 4,704.30 = 1,917.12 : x
  2. Step 2: Convert to fraction form
    3,409.14/4,704.30 = 1,917.12/x
  3. Step 3: Cross multiply
    3,409.14x = 4,704.30 × 1,917.12
  4. Step 4: Simplify right side
    3,409.14x = 9,018,707.62
  5. Step 5: Solve for x
    x = 9,018,707.62/3,409.14
  6. Step 6: Final answer
    x = 2,645.45

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Half scale
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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.