Home / 5,414.19-8,121.29-1,518.63

Finding the Fourth Proportional to 5,414.19, 8,121.29 and 1,518.63

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Solution

The fourth proportional to 5,414.19, 8,121.29 and 1,518.63 is: 2,277.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.19 : 8,121.29 = 1,518.63 : x
  2. Step 2: Convert to fraction form
    5,414.19/8,121.29 = 1,518.63/x
  3. Step 3: Cross multiply
    5,414.19x = 8,121.29 × 1,518.63
  4. Step 4: Simplify right side
    5,414.19x = 12,333,227.04
  5. Step 5: Solve for x
    x = 12,333,227.04/5,414.19
  6. Step 6: Final answer
    x = 2,277.95

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1.5x scale

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.