Home / 4,218.48-5,821.74-2,892.78

Finding the Fourth Proportional to 4,218.48, 5,821.74 and 2,892.78

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Solution

The fourth proportional to 4,218.48, 5,821.74 and 2,892.78 is: 3,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.48 : 5,821.74 = 2,892.78 : x
  2. Step 2: Convert to fraction form
    4,218.48/5,821.74 = 2,892.78/x
  3. Step 3: Cross multiply
    4,218.48x = 5,821.74 × 2,892.78
  4. Step 4: Simplify right side
    4,218.48x = 16,841,013.04
  5. Step 5: Solve for x
    x = 16,841,013.04/4,218.48
  6. Step 6: Final answer
    x = 3,992.20

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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.