Home / 2,830.64-4,241.45-1,902.78

Finding the Fourth Proportional to 2,830.64, 4,241.45 and 1,902.78

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Solution

The fourth proportional to 2,830.64, 4,241.45 and 1,902.78 is: 2,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.64 : 4,241.45 = 1,902.78 : x
  2. Step 2: Convert to fraction form
    2,830.64/4,241.45 = 1,902.78/x
  3. Step 3: Cross multiply
    2,830.64x = 4,241.45 × 1,902.78
  4. Step 4: Simplify right side
    2,830.64x = 8,070,536.72
  5. Step 5: Solve for x
    x = 8,070,536.72/2,830.64
  6. Step 6: Final answer
    x = 2,851.14

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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.