Home / 7,631.94-11,446.72-2,085.72

Finding the Fourth Proportional to 7,631.94, 11,446.72 and 2,085.72

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Solution

The fourth proportional to 7,631.94, 11,446.72 and 2,085.72 is: 3,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.94 : 11,446.72 = 2,085.72 : x
  2. Step 2: Convert to fraction form
    7,631.94/11,446.72 = 2,085.72/x
  3. Step 3: Cross multiply
    7,631.94x = 11,446.72 × 2,085.72
  4. Step 4: Simplify right side
    7,631.94x = 23,874,655.45
  5. Step 5: Solve for x
    x = 23,874,655.45/7,631.94
  6. Step 6: Final answer
    x = 3,128.25

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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.