Home / 3,135.02-4,324.45-2,072.80

Finding the Fourth Proportional to 3,135.02, 4,324.45 and 2,072.80

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Solution

The fourth proportional to 3,135.02, 4,324.45 and 2,072.80 is: 2,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.02 : 4,324.45 = 2,072.80 : x
  2. Step 2: Convert to fraction form
    3,135.02/4,324.45 = 2,072.80/x
  3. Step 3: Cross multiply
    3,135.02x = 4,324.45 × 2,072.80
  4. Step 4: Simplify right side
    3,135.02x = 8,963,719.96
  5. Step 5: Solve for x
    x = 8,963,719.96/3,135.02
  6. Step 6: Final answer
    x = 2,859.22

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1.5x scale

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.