Home / 7,085.45-10,623.62-3,387.60

Finding the Fourth Proportional to 7,085.45, 10,623.62 and 3,387.60

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Solution

The fourth proportional to 7,085.45, 10,623.62 and 3,387.60 is: 5,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.45 : 10,623.62 = 3,387.60 : x
  2. Step 2: Convert to fraction form
    7,085.45/10,623.62 = 3,387.60/x
  3. Step 3: Cross multiply
    7,085.45x = 10,623.62 × 3,387.60
  4. Step 4: Simplify right side
    7,085.45x = 35,988,558.17
  5. Step 5: Solve for x
    x = 35,988,558.17/7,085.45
  6. Step 6: Final answer
    x = 5,079.22

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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.