Home / 3,216.30-4,820.40-2,851.80

Finding the Fourth Proportional to 3,216.30, 4,820.40 and 2,851.80

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Solution

The fourth proportional to 3,216.30, 4,820.40 and 2,851.80 is: 4,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.30 : 4,820.40 = 2,851.80 : x
  2. Step 2: Convert to fraction form
    3,216.30/4,820.40 = 2,851.80/x
  3. Step 3: Cross multiply
    3,216.30x = 4,820.40 × 2,851.80
  4. Step 4: Simplify right side
    3,216.30x = 13,746,816.72
  5. Step 5: Solve for x
    x = 13,746,816.72/3,216.30
  6. Step 6: Final answer
    x = 4,274.11

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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.