Home / 4,420.78-6,631.18-2,105.26

Finding the Fourth Proportional to 4,420.78, 6,631.18 and 2,105.26

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Solution

The fourth proportional to 4,420.78, 6,631.18 and 2,105.26 is: 3,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.78 : 6,631.18 = 2,105.26 : x
  2. Step 2: Convert to fraction form
    4,420.78/6,631.18 = 2,105.26/x
  3. Step 3: Cross multiply
    4,420.78x = 6,631.18 × 2,105.26
  4. Step 4: Simplify right side
    4,420.78x = 13,960,358.01
  5. Step 5: Solve for x
    x = 13,960,358.01/4,420.78
  6. Step 6: Final answer
    x = 3,157.89

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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.