Home / 4,217.28-5,820.30-2,645.88

Finding the Fourth Proportional to 4,217.28, 5,820.30 and 2,645.88

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Solution

The fourth proportional to 4,217.28, 5,820.30 and 2,645.88 is: 3,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.28 : 5,820.30 = 2,645.88 : x
  2. Step 2: Convert to fraction form
    4,217.28/5,820.30 = 2,645.88/x
  3. Step 3: Cross multiply
    4,217.28x = 5,820.30 × 2,645.88
  4. Step 4: Simplify right side
    4,217.28x = 15,399,815.36
  5. Step 5: Solve for x
    x = 15,399,815.36/4,217.28
  6. Step 6: Final answer
    x = 3,651.60

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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.