Home / 3,211.65-4,817.16-2,278.59

Finding the Fourth Proportional to 3,211.65, 4,817.16 and 2,278.59

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Solution

The fourth proportional to 3,211.65, 4,817.16 and 2,278.59 is: 3,417.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.65 : 4,817.16 = 2,278.59 : x
  2. Step 2: Convert to fraction form
    3,211.65/4,817.16 = 2,278.59/x
  3. Step 3: Cross multiply
    3,211.65x = 4,817.16 × 2,278.59
  4. Step 4: Simplify right side
    3,211.65x = 10,976,314.54
  5. Step 5: Solve for x
    x = 10,976,314.54/3,211.65
  6. Step 6: Final answer
    x = 3,417.66

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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.