Home / 7,085.56-10,628.25-3,187.21

Finding the Fourth Proportional to 7,085.56, 10,628.25 and 3,187.21

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Solution

The fourth proportional to 7,085.56, 10,628.25 and 3,187.21 is: 4,780.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.56 : 10,628.25 = 3,187.21 : x
  2. Step 2: Convert to fraction form
    7,085.56/10,628.25 = 3,187.21/x
  3. Step 3: Cross multiply
    7,085.56x = 10,628.25 × 3,187.21
  4. Step 4: Simplify right side
    7,085.56x = 33,874,464.68
  5. Step 5: Solve for x
    x = 33,874,464.68/7,085.56
  6. Step 6: Final answer
    x = 4,780.77

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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.