Home / 4,218.20-5,815.68-2,723.48

Finding the Fourth Proportional to 4,218.20, 5,815.68 and 2,723.48

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Solution

The fourth proportional to 4,218.20, 5,815.68 and 2,723.48 is: 3,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.20 : 5,815.68 = 2,723.48 : x
  2. Step 2: Convert to fraction form
    4,218.20/5,815.68 = 2,723.48/x
  3. Step 3: Cross multiply
    4,218.20x = 5,815.68 × 2,723.48
  4. Step 4: Simplify right side
    4,218.20x = 15,838,888.17
  5. Step 5: Solve for x
    x = 15,838,888.17/4,218.20
  6. Step 6: Final answer
    x = 3,754.89

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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.