Home / 4,156.62-5,735.91-2,478.20

Finding the Fourth Proportional to 4,156.62, 5,735.91 and 2,478.20

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Solution

The fourth proportional to 4,156.62, 5,735.91 and 2,478.20 is: 3,419.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156.62 : 5,735.91 = 2,478.20 : x
  2. Step 2: Convert to fraction form
    4,156.62/5,735.91 = 2,478.20/x
  3. Step 3: Cross multiply
    4,156.62x = 5,735.91 × 2,478.20
  4. Step 4: Simplify right side
    4,156.62x = 14,214,712.78
  5. Step 5: Solve for x
    x = 14,214,712.78/4,156.62
  6. Step 6: Final answer
    x = 3,419.78

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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.