Home / 3,135.33-4,326.53-1,718.79

Finding the Fourth Proportional to 3,135.33, 4,326.53 and 1,718.79

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Solution

The fourth proportional to 3,135.33, 4,326.53 and 1,718.79 is: 2,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.33 : 4,326.53 = 1,718.79 : x
  2. Step 2: Convert to fraction form
    3,135.33/4,326.53 = 1,718.79/x
  3. Step 3: Cross multiply
    3,135.33x = 4,326.53 × 1,718.79
  4. Step 4: Simplify right side
    3,135.33x = 7,436,387.90
  5. Step 5: Solve for x
    x = 7,436,387.90/3,135.33
  6. Step 6: Final answer
    x = 2,371.80

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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.