Home / 3,905.91-5,858.90-1,308.84

Finding the Fourth Proportional to 3,905.91, 5,858.90 and 1,308.84

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Solution

The fourth proportional to 3,905.91, 5,858.90 and 1,308.84 is: 1,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.91 : 5,858.90 = 1,308.84 : x
  2. Step 2: Convert to fraction form
    3,905.91/5,858.90 = 1,308.84/x
  3. Step 3: Cross multiply
    3,905.91x = 5,858.90 × 1,308.84
  4. Step 4: Simplify right side
    3,905.91x = 7,668,356.13
  5. Step 5: Solve for x
    x = 7,668,356.13/3,905.91
  6. Step 6: Final answer
    x = 1,963.27

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.