Home / 3,418.88-4,718-1,926.80

Finding the Fourth Proportional to 3,418.88, 4,718 and 1,926.80

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Solution

The fourth proportional to 3,418.88, 4,718 and 1,926.80 is: 2,658.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.88 : 4,718 = 1,926.80 : x
  2. Step 2: Convert to fraction form
    3,418.88/4,718 = 1,926.80/x
  3. Step 3: Cross multiply
    3,418.88x = 4,718 × 1,926.80
  4. Step 4: Simplify right side
    3,418.88x = 9,090,642.40
  5. Step 5: Solve for x
    x = 9,090,642.40/3,418.88
  6. Step 6: Final answer
    x = 2,658.95

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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.