Home / 7,631.92-11,447.98-2,085.80

Finding the Fourth Proportional to 7,631.92, 11,447.98 and 2,085.80

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Solution

The fourth proportional to 7,631.92, 11,447.98 and 2,085.80 is: 3,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.92 : 11,447.98 = 2,085.80 : x
  2. Step 2: Convert to fraction form
    7,631.92/11,447.98 = 2,085.80/x
  3. Step 3: Cross multiply
    7,631.92x = 11,447.98 × 2,085.80
  4. Step 4: Simplify right side
    7,631.92x = 23,878,210.36
  5. Step 5: Solve for x
    x = 23,878,210.36/7,631.92
  6. Step 6: Final answer
    x = 3,128.73

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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.