Home / 3,279.14-4,920.16-1,718.77

Finding the Fourth Proportional to 3,279.14, 4,920.16 and 1,718.77

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Solution

The fourth proportional to 3,279.14, 4,920.16 and 1,718.77 is: 2,578.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.14 : 4,920.16 = 1,718.77 : x
  2. Step 2: Convert to fraction form
    3,279.14/4,920.16 = 1,718.77/x
  3. Step 3: Cross multiply
    3,279.14x = 4,920.16 × 1,718.77
  4. Step 4: Simplify right side
    3,279.14x = 8,456,606.81
  5. Step 5: Solve for x
    x = 8,456,606.81/3,279.14
  6. Step 6: Final answer
    x = 2,578.91

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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.