Home / 7,085.35-10,628.04-2,155.03

Finding the Fourth Proportional to 7,085.35, 10,628.04 and 2,155.03

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Solution

The fourth proportional to 7,085.35, 10,628.04 and 2,155.03 is: 3,232.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.35 : 10,628.04 = 2,155.03 : x
  2. Step 2: Convert to fraction form
    7,085.35/10,628.04 = 2,155.03/x
  3. Step 3: Cross multiply
    7,085.35x = 10,628.04 × 2,155.03
  4. Step 4: Simplify right side
    7,085.35x = 22,903,745.04
  5. Step 5: Solve for x
    x = 22,903,745.04/7,085.35
  6. Step 6: Final answer
    x = 3,232.55

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Similar ratio
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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.