Home / 2,820.94-3,892.86-1,562.02

Finding the Fourth Proportional to 2,820.94, 3,892.86 and 1,562.02

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Solution

The fourth proportional to 2,820.94, 3,892.86 and 1,562.02 is: 2,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.94 : 3,892.86 = 1,562.02 : x
  2. Step 2: Convert to fraction form
    2,820.94/3,892.86 = 1,562.02/x
  3. Step 3: Cross multiply
    2,820.94x = 3,892.86 × 1,562.02
  4. Step 4: Simplify right side
    2,820.94x = 6,080,725.18
  5. Step 5: Solve for x
    x = 6,080,725.18/2,820.94
  6. Step 6: Final answer
    x = 2,155.57

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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.