Home / 5,418.94-8,123.48-2,085.06

Finding the Fourth Proportional to 5,418.94, 8,123.48 and 2,085.06

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Solution

The fourth proportional to 5,418.94, 8,123.48 and 2,085.06 is: 3,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.94 : 8,123.48 = 2,085.06 : x
  2. Step 2: Convert to fraction form
    5,418.94/8,123.48 = 2,085.06/x
  3. Step 3: Cross multiply
    5,418.94x = 8,123.48 × 2,085.06
  4. Step 4: Simplify right side
    5,418.94x = 16,937,934.11
  5. Step 5: Solve for x
    x = 16,937,934.11/5,418.94
  6. Step 6: Final answer
    x = 3,125.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.