Home / 5,130.88-7,080.60-2,773.04

Finding the Fourth Proportional to 5,130.88, 7,080.60 and 2,773.04

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Solution

The fourth proportional to 5,130.88, 7,080.60 and 2,773.04 is: 3,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.88 : 7,080.60 = 2,773.04 : x
  2. Step 2: Convert to fraction form
    5,130.88/7,080.60 = 2,773.04/x
  3. Step 3: Cross multiply
    5,130.88x = 7,080.60 × 2,773.04
  4. Step 4: Simplify right side
    5,130.88x = 19,634,787.02
  5. Step 5: Solve for x
    x = 19,634,787.02/5,130.88
  6. Step 6: Final answer
    x = 3,826.79

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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.