Home / 3,135.83-4,327.22-1,719.29

Finding the Fourth Proportional to 3,135.83, 4,327.22 and 1,719.29

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Solution

The fourth proportional to 3,135.83, 4,327.22 and 1,719.29 is: 2,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.83 : 4,327.22 = 1,719.29 : x
  2. Step 2: Convert to fraction form
    3,135.83/4,327.22 = 1,719.29/x
  3. Step 3: Cross multiply
    3,135.83x = 4,327.22 × 1,719.29
  4. Step 4: Simplify right side
    3,135.83x = 7,439,737.48
  5. Step 5: Solve for x
    x = 7,439,737.48/3,135.83
  6. Step 6: Final answer
    x = 2,372.49

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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.