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Finding the Fourth Proportional to 2,820.84, 4,218.84 and 2,562.48

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Solution

The fourth proportional to 2,820.84, 4,218.84 and 2,562.48 is: 3,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.84 : 4,218.84 = 2,562.48 : x
  2. Step 2: Convert to fraction form
    2,820.84/4,218.84 = 2,562.48/x
  3. Step 3: Cross multiply
    2,820.84x = 4,218.84 × 2,562.48
  4. Step 4: Simplify right side
    2,820.84x = 10,810,693.12
  5. Step 5: Solve for x
    x = 10,810,693.12/2,820.84
  6. Step 6: Final answer
    x = 3,832.44

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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.