Home / 7,081.14-10,621.42-1,887.02

Finding the Fourth Proportional to 7,081.14, 10,621.42 and 1,887.02

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Solution

The fourth proportional to 7,081.14, 10,621.42 and 1,887.02 is: 2,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.14 : 10,621.42 = 1,887.02 : x
  2. Step 2: Convert to fraction form
    7,081.14/10,621.42 = 1,887.02/x
  3. Step 3: Cross multiply
    7,081.14x = 10,621.42 × 1,887.02
  4. Step 4: Simplify right side
    7,081.14x = 20,042,831.97
  5. Step 5: Solve for x
    x = 20,042,831.97/7,081.14
  6. Step 6: Final answer
    x = 2,830.45

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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.