Home / 3,135.78-4,325.48-2,073.56

Finding the Fourth Proportional to 3,135.78, 4,325.48 and 2,073.56

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Solution

The fourth proportional to 3,135.78, 4,325.48 and 2,073.56 is: 2,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.78 : 4,325.48 = 2,073.56 : x
  2. Step 2: Convert to fraction form
    3,135.78/4,325.48 = 2,073.56/x
  3. Step 3: Cross multiply
    3,135.78x = 4,325.48 × 2,073.56
  4. Step 4: Simplify right side
    3,135.78x = 8,969,142.31
  5. Step 5: Solve for x
    x = 8,969,142.31/3,135.78
  6. Step 6: Final answer
    x = 2,860.26

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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.