Home / 3,135.41-4,326.98-1,808.79

Finding the Fourth Proportional to 3,135.41, 4,326.98 and 1,808.79

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Solution

The fourth proportional to 3,135.41, 4,326.98 and 1,808.79 is: 2,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.41 : 4,326.98 = 1,808.79 : x
  2. Step 2: Convert to fraction form
    3,135.41/4,326.98 = 1,808.79/x
  3. Step 3: Cross multiply
    3,135.41x = 4,326.98 × 1,808.79
  4. Step 4: Simplify right side
    3,135.41x = 7,826,598.15
  5. Step 5: Solve for x
    x = 7,826,598.15/3,135.41
  6. Step 6: Final answer
    x = 2,496.20

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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.