Home / 2,851.34-4,278.25-1,003.78

Finding the Fourth Proportional to 2,851.34, 4,278.25 and 1,003.78

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Solution

The fourth proportional to 2,851.34, 4,278.25 and 1,003.78 is: 1,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.34 : 4,278.25 = 1,003.78 : x
  2. Step 2: Convert to fraction form
    2,851.34/4,278.25 = 1,003.78/x
  3. Step 3: Cross multiply
    2,851.34x = 4,278.25 × 1,003.78
  4. Step 4: Simplify right side
    2,851.34x = 4,294,421.79
  5. Step 5: Solve for x
    x = 4,294,421.79/2,851.34
  6. Step 6: Final answer
    x = 1,506.11

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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.