Home / 3,135.55-4,327.77-1,956.39

Finding the Fourth Proportional to 3,135.55, 4,327.77 and 1,956.39

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Solution

The fourth proportional to 3,135.55, 4,327.77 and 1,956.39 is: 2,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.55 : 4,327.77 = 1,956.39 : x
  2. Step 2: Convert to fraction form
    3,135.55/4,327.77 = 1,956.39/x
  3. Step 3: Cross multiply
    3,135.55x = 4,327.77 × 1,956.39
  4. Step 4: Simplify right side
    3,135.55x = 8,466,805.95
  5. Step 5: Solve for x
    x = 8,466,805.95/3,135.55
  6. Step 6: Final answer
    x = 2,700.26

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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.