Home / 3,418.75-4,718.14-1,926.81

Finding the Fourth Proportional to 3,418.75, 4,718.14 and 1,926.81

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Solution

The fourth proportional to 3,418.75, 4,718.14 and 1,926.81 is: 2,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.75 : 4,718.14 = 1,926.81 : x
  2. Step 2: Convert to fraction form
    3,418.75/4,718.14 = 1,926.81/x
  3. Step 3: Cross multiply
    3,418.75x = 4,718.14 × 1,926.81
  4. Step 4: Simplify right side
    3,418.75x = 9,090,954.52
  5. Step 5: Solve for x
    x = 9,090,954.52/3,418.75
  6. Step 6: Final answer
    x = 2,659.14

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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.