Home / 2,851.40-4,269.80-2,525.78

Finding the Fourth Proportional to 2,851.40, 4,269.80 and 2,525.78

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Solution

The fourth proportional to 2,851.40, 4,269.80 and 2,525.78 is: 3,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.40 : 4,269.80 = 2,525.78 : x
  2. Step 2: Convert to fraction form
    2,851.40/4,269.80 = 2,525.78/x
  3. Step 3: Cross multiply
    2,851.40x = 4,269.80 × 2,525.78
  4. Step 4: Simplify right side
    2,851.40x = 10,784,575.44
  5. Step 5: Solve for x
    x = 10,784,575.44/2,851.40
  6. Step 6: Final answer
    x = 3,782.20

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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.